<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2341-4545</journal-id>
<journal-title><![CDATA[GE-Portuguese Journal of Gastroenterology]]></journal-title>
<abbrev-journal-title><![CDATA[GE Port J Gastroenterol]]></abbrev-journal-title>
<issn>2341-4545</issn>
<publisher>
<publisher-name><![CDATA[Sociedade Portuguesa de Gastrenterologia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2341-45452022000400001</article-id>
<article-id pub-id-type="doi">10.1159/000520212</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Intestinal Ultrasound in Inflammatory Bowel Disease: A Valuable and Increasingly Important Tool]]></article-title>
<article-title xml:lang="pt"><![CDATA[Ecografia intestinal na doença inflamatória do intestine: uma ferramenta valiosa e de importância crescente]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Frias-Gomes]]></surname>
<given-names><![CDATA[Catarina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torres]]></surname>
<given-names><![CDATA[Joana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Palmela]]></surname>
<given-names><![CDATA[Carolina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Beatriz Ângelo Surgical Department Gastroenterology Division]]></institution>
<addr-line><![CDATA[Loures ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidade de Lisboa Faculdade de Medicina ]]></institution>
<addr-line><![CDATA[Lisbon ]]></addr-line>
<country>Portugal</country>
</aff>
<pub-date pub-type="pub">
<day>30</day>
<month>08</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>30</day>
<month>08</month>
<year>2022</year>
</pub-date>
<volume>29</volume>
<numero>4</numero>
<fpage>1</fpage>
<lpage>17</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S2341-45452022000400001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S2341-45452022000400001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S2341-45452022000400001&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background: Intestinal ultrasound is emerging as a non-invasive tool for monitoring disease activity in inflammatory bowel disease patients due to its low cost, excellent safety profile, and availability. Herein, we comprehensively review the role of intestinal ultrasound in the management of these patients.  Summary: Intestinal ultrasound has a good accuracy in the diagnosis of Crohn&#8217;s disease, as well as in the assessment of disease activity, extent, and evaluating disease-related complications, namely strictures, fistulae, and abscesses. Even though not fully validated, several scores have been developed to assess disease activity using ultrasound. Importantly, intestinal ultrasound can also be used to assess response to treatment. Changes in ultrasonographic parameters are observed as early as 4 weeks after treatment initiation and persist during short- and long-term follow-up. Additionally, Crohn&#8217;s disease patients with no ultrasound improvement seem to be at a higher risk of therapy intensification, need for steroids, hospitalisation, or even surgery. Similarly to Crohn&#8217;s disease, intestinal ultrasound has a good performance in the diagnosis, activity, and disease extent assessment in ulcerative colitis patients. In fact, in patients with severe acute colitis, higher bowel wall thickness at admission is associated with the need for salvage therapy and the absence of a significant decrease in this parameter may predict the need for colectomy. Short-term data also evidence the role of intestinal ultrasound in evaluating therapy response, with ultrasound changes observed after 2 weeks of treatment and significant improvement after 12 weeks of follow-up in ulcerative colitis.  Key Messages: Intestinal ultrasound is a valuable tool to assess disease activity and complications, and to monitor response to therapy. Even though longer prospective data are warranted, intestinal ultrasound may lead to a change in the paradigm of inflammatory bowel disease management as it can be used in a point-of-care setting, enabling earlier intervention if needed.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo  Contexto: A ecografia intestinal na doença inflamatória intestinal tem ganho importância crescente como exame não invasivo para monitorizar a atividade de doença, pelos seus custos reduzidos, excelente perfil de segurança e disponibilidade. Neste artigo realizamos uma revisão sobre o papel da ecografia intestinal no manejo destes doentes.  Sumário: Na doença de Crohn, a ecografia intestinal tem uma boa acuidade no diagnóstico, avaliação da atividade e extensão da doença, assim como na avaliação de complicações, como estenoses, fístulas e abcessos. Apesar de não estarem validados, váriosscorestêm sido desenvolvidos para avaliar a atividade de doença. É de realçar a importância da ecografia intestinal na avaliação da resposta à terapêutica. A melhoria dos parâmetros ecográficos é observada tão precocemente como quatro semanas e persiste durante o seguimento a curto e longo prazo. Os doentes sem melhoria ecográfica parecem ter uma maior necessidade de intensificação terapêutica, corticóides, internamento ou cirurgia. À semelhança da doença de Crohn, a ecografia intestinal tem uma boa acuidade na avaliação ao diagnóstico, atividade e extensão da doença na colite ulcerosa. Na colite ulcerosa grave, um maior espessamento da parede intestinal à admissão está associado a maior necessidade de terapêutica de resgate e a ausência de melhoria deste parâmetro pode predizer a necessidade de colectomia. A ecografia também permite a avaliação da resposta à terapêutica na colite ulcerosa, com alterações observadas após duas semanas de tratamento e mantendo melhoria significativa após 12 semanas.  Mensagem-chave: A ecografia intestinal é um método importante para avaliar a atividade de doença, complicações e monitorizar a resposta à terapêutica na doença inflamatória intestinal. Apesar de serem necessários mais estudos prospetivos, a ecografia intestinal pode levar a uma mudança de paradigma no manejo destes doentes, uma vez que pode ser utilizada no momento de prestação de cuidados, permitindo uma intervenção precoce quando necessário.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Intestinal ultrasound]]></kwd>
<kwd lng="en"><![CDATA[Diagnosis]]></kwd>
<kwd lng="en"><![CDATA[Disease activity]]></kwd>
<kwd lng="en"><![CDATA[Monitoring]]></kwd>
<kwd lng="en"><![CDATA[Therapy response]]></kwd>
<kwd lng="en"><![CDATA[Point-of-care]]></kwd>
<kwd lng="pt"><![CDATA[Ecografia intestinal]]></kwd>
<kwd lng="pt"><![CDATA[Diagnóstico]]></kwd>
<kwd lng="pt"><![CDATA[Atividade de doença]]></kwd>
<kwd lng="pt"><![CDATA[Monitorização]]></kwd>
<kwd lng="pt"><![CDATA[Resposta à terapêutica]]></kwd>
<kwd lng="pt"><![CDATA[Point-of-care]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Turner]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Ricciuto]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Lewis]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[STRIDE-II An Update on the Selecting Therapeutic Targets in Inflammatory Bowel Disease (STRIDE) Initiative of the International Organization for the Study of IBD (IOIBD): Determining Therapeutic Goals for Treat-to-Target strategies in IBD]]></article-title>
<collab>D'Amico F.Dhaliwal J.Griffiths AMInternational Organization for the Study of IBD</collab>
<source><![CDATA[Gastroenterology]]></source>
<year>2021</year>
<volume>160</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>1570-83</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Shah]]></surname>
<given-names><![CDATA[SC]]></given-names>
</name>
<name>
<surname><![CDATA[Colombel]]></surname>
<given-names><![CDATA[JF]]></given-names>
</name>
<name>
<surname><![CDATA[Sands]]></surname>
<given-names><![CDATA[BE]]></given-names>
</name>
<name>
<surname><![CDATA[Narula]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mucosal healing is associated with improved long-term outcomes of patients with ulcerative colitis: a systematic review and metaanalysis]]></article-title>
<source><![CDATA[Clin Gastroenterol Hepatol]]></source>
<year>2016</year>
<volume>14</volume>
<numero>9</numero>
<issue>9</issue>
<page-range>1245-55</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Maaser]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Sturm]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Vavricka]]></surname>
<given-names><![CDATA[SR]]></given-names>
</name>
<name>
<surname><![CDATA[Kucharzik]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Fiorino]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Annese]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[ECCOESGAR Guideline for Diagnostic Assessment in IBD Part 1 initial diagnosis, monitoring of known IBD, detection of complications]]></article-title>
<collab>European Crohn's and Colitis Organisation [ECCO]and the European Society of Gastrointestinal and Abdominal Radiology [ESGAR]</collab>
<source><![CDATA[J Crohns Colitis]]></source>
<year>2019</year>
<volume>13</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>144-64</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Smith]]></surname>
<given-names><![CDATA[RL]]></given-names>
</name>
<name>
<surname><![CDATA[Taylor]]></surname>
<given-names><![CDATA[KM]]></given-names>
</name>
<name>
<surname><![CDATA[Friedman]]></surname>
<given-names><![CDATA[AB]]></given-names>
</name>
<name>
<surname><![CDATA[Gibson]]></surname>
<given-names><![CDATA[RN]]></given-names>
</name>
<name>
<surname><![CDATA[Gibson]]></surname>
<given-names><![CDATA[PR]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Systematic Review Clinical Utility of Gastrointestinal Ultrasound in the Diagnosis, Assessment and Management of Patients With Ulcerative Colitis]]></article-title>
<source><![CDATA[J Crohns Colitis]]></source>
<year>2020</year>
<volume>14</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>465-79</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Calabrese]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Maaser]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Zorzi]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Kannengiesser]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Hanauer]]></surname>
<given-names><![CDATA[SB]]></given-names>
</name>
<name>
<surname><![CDATA[Bruining]]></surname>
<given-names><![CDATA[DH]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Bowel Ultrasonography in the Management of Crohn's Disease A Review with Recommendations of an International Panel of Experts]]></article-title>
<source><![CDATA[Inflamm Bowel Dis]]></source>
<year>2016</year>
<volume>22</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>1168-83</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[de Voogd]]></surname>
<given-names><![CDATA[FA]]></given-names>
</name>
<name>
<surname><![CDATA[Verstockt]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Maaser]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Gecse]]></surname>
<given-names><![CDATA[KB]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Point-of-care intestinal ultrasonography in inflammatory bowel disease]]></article-title>
<source><![CDATA[Nat Rev Gastroenterol Hepatol]]></source>
<year>2021</year>
<volume>18</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>209-10</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Goodsall]]></surname>
<given-names><![CDATA[TM]]></given-names>
</name>
<name>
<surname><![CDATA[Nguyen]]></surname>
<given-names><![CDATA[TM]]></given-names>
</name>
<name>
<surname><![CDATA[Parker]]></surname>
<given-names><![CDATA[CE]]></given-names>
</name>
<name>
<surname><![CDATA[Ma]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Andrews]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Jairath]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Systematic Review Gastrointestinal Ultrasound Scoring Indices for Inflammatory Bowel Disease]]></article-title>
<source><![CDATA[J Crohns Colitis]]></source>
<year>2021</year>
<volume>15</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>125-42</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Astegiano]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Bresso]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Cammarota]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Sarno]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Robotti]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Demarchi]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Abdominal pain and bowel dysfunction diagnostic role of intestinal ultrasound]]></article-title>
<source><![CDATA[Eur J Gastroenterol Hepatol]]></source>
<year>2001</year>
<volume>13</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>927-31</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[White]]></surname>
<given-names><![CDATA[LS]]></given-names>
</name>
<name>
<surname><![CDATA[Campbell]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Lee]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Lord]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Graham]]></surname>
<given-names><![CDATA[RS.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Intestinal ultrasound as first-line investigation in low risk gastrointestinal symptoms: a new model of care.]]></article-title>
<source><![CDATA[Intern Med J.]]></source>
<year>2020</year>
</nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Revzin]]></surname>
<given-names><![CDATA[MV]]></given-names>
</name>
<name>
<surname><![CDATA[Moshiri]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Bokhari]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Pellerito]]></surname>
<given-names><![CDATA[JS]]></given-names>
</name>
<name>
<surname><![CDATA[Menias]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Sonographic assessment of infectious diseases of the gastrointestinal tract from scanning to diagnosis]]></article-title>
<source><![CDATA[Abdom Radiol]]></source>
<year>2020</year>
<volume>45</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>261-92</page-range></nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kucharzik]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Kannengiesser]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Petersen]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The use of ultrasound in inflammatory bowel disease]]></article-title>
<source><![CDATA[Ann Gastroenterol]]></source>
<year>2017</year>
<volume>30</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>135-44</page-range></nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dong]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Zhao]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Zhu]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Gong]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ultrasound as a diagnostic tool in detecting active Crohn's disease a metaanalysis of prospective studies]]></article-title>
<source><![CDATA[Eur Radiol]]></source>
<year>2014</year>
<volume>24</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>26-33</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>13</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bollegala]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Griller]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Bannerman]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Habal]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Nguyen]]></surname>
<given-names><![CDATA[GC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ultrasound vs Endoscopy, Surgery, or Pathology for the Diagnosis of Small Bowel Crohn's Disease and its Complications]]></article-title>
<source><![CDATA[Inflamm Bowel Dis]]></source>
<year>2019</year>
<volume>25</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>1313-38</page-range></nlm-citation>
</ref>
<ref id="B14">
<label>14</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ellrichmann]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Wietzke-Braun]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Dhar]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Nikolaus]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Arlt]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Bethge]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Endoscopic ultrasound of the colon for the differentiation of Crohn's disease and ulcerative colitis in comparison with healthy controls]]></article-title>
<source><![CDATA[Aliment Pharmacol Ther]]></source>
<year>2014</year>
<volume>39</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>823-33</page-range></nlm-citation>
</ref>
<ref id="B15">
<label>15</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Panés]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Bouzas]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Chaparro]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[García-Sánchez]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Gisbert]]></surname>
<given-names><![CDATA[JP]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Systematic review the use of ultrasonography, computed tomography and magnetic resonance imaging for the diagnosis, assessment of activity and abdominal complications of Crohn's disease]]></article-title>
<collab>Martínez de Guereñu B</collab>
<source><![CDATA[Aliment Pharmacol Ther]]></source>
<year>2011</year>
<volume>34</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>125-45</page-range></nlm-citation>
</ref>
<ref id="B16">
<label>16</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Allocca]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Fiorino]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Bonifacio]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Furfaro]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Gilardi]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Argollo]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparative Accuracy of Bowel Ultrasound Versus Magnetic Resonance Enterography in Combination With Colonoscopy in Assessing Crohn's Disease and Guiding Clinical Decision-making]]></article-title>
<source><![CDATA[J Crohns Colitis]]></source>
<year>2018</year>
<volume>12</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>1280-7</page-range></nlm-citation>
</ref>
<ref id="B17">
<label>17</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yuksel]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<name>
<surname><![CDATA[Kilincalp]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Coskun]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Akinci]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Hamamci]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Alkan]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Diagnostic accuracy of intestinal ultrasound and magnetic resonance enterography for the detection of endoscopybased disease activity in ileocolonic Crohn's disease]]></article-title>
<source><![CDATA[Eur J Gastroenterol Hepatol]]></source>
<year>2019</year>
<volume>31</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>809-16</page-range></nlm-citation>
</ref>
<ref id="B18">
<label>18</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Taylor]]></surname>
<given-names><![CDATA[SA]]></given-names>
</name>
<name>
<surname><![CDATA[Mallett]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Bhatnagar]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[BaldwinCleland]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Bloom]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Gupta]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Diagnostic accuracy of magnetic resonance enterography and small bowel ultrasound for the extent and activity of newly diagnosed and relapsed Crohn's disease (METRIC) a multicentre trial]]></article-title>
<collab>METRIC study investigators</collab>
<source><![CDATA[Lancet Gastroenterol Hepatol]]></source>
<year>2018</year>
<volume>3</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>548-58</page-range></nlm-citation>
</ref>
<ref id="B19">
<label>19</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Novak]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Maaser]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Wilkens]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Maconi]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Kucharzik]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Diagnostic accuracy of MRE and ultrasound for Crohn's disease]]></article-title>
<collab>International Bowel Ultrasound Group</collab>
<source><![CDATA[Lancet Gastroenterol Hepatol]]></source>
<year>2019</year>
<volume>4</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>95-6</page-range></nlm-citation>
</ref>
<ref id="B20">
<label>20</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sturm]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Maaser]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Calabrese]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Annese]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Fiorino]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Kucharzik]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[ECCOESGAR Guideline for Diagnostic Assessment in IBD Part 2 IBD scores and general principles and technical aspects]]></article-title>
<collab>European Crohn's and Colitis Organisation [ECCO]and the European Society of Gastrointestinal and Abdominal Radiology [ESGAR]</collab>
<source><![CDATA[J Crohns Colitis]]></source>
<year>2019</year>
<volume>13</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>273-84</page-range></nlm-citation>
</ref>
<ref id="B21">
<label>21</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rispo]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Imperatore]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Testa]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Nardone]]></surname>
<given-names><![CDATA[OM]]></given-names>
</name>
<name>
<surname><![CDATA[Luglio]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Caporaso]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Diagnostic Accuracy of Ultrasonography in the Detection of Postsurgical Recurrence in Crohn's Disease A Systematic Review with Metaanalysis]]></article-title>
<source><![CDATA[Inflamm Bowel Dis]]></source>
<year>2018</year>
<volume>24</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>977-88</page-range></nlm-citation>
</ref>
<ref id="B22">
<label>22</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Paredes]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Ripollés]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Cortés]]></surname>
<given-names><![CDATA[X]]></given-names>
</name>
<name>
<surname><![CDATA[Moreno]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez]]></surname>
<given-names><![CDATA[MJ]]></given-names>
</name>
<name>
<surname><![CDATA[Bustamante-Balén]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Contrast-enhanced ultrasonography usefulness in the assessment of postoperative recurrence of Crohn's disease]]></article-title>
<source><![CDATA[J Crohns Colitis]]></source>
<year>2013</year>
<volume>7</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>192-201</page-range></nlm-citation>
</ref>
<ref id="B23">
<label>23</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Calabrese]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Petruzziello]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Onali]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Condino]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Zorzi]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Pallone]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Severity of postoperative recurrence in Crohn's disease correlation between endoscopic and sonographic findings]]></article-title>
<source><![CDATA[Inflamm Bowel Dis]]></source>
<year>2009</year>
<volume>15</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>1635-42</page-range></nlm-citation>
</ref>
<ref id="B24">
<label>24</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Losco]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Viganò]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Conte]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Cesana]]></surname>
<given-names><![CDATA[BM]]></given-names>
</name>
<name>
<surname><![CDATA[Basilisco]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Assessing the activity of perianal Crohn's disease comparison of clinical indices and computer-assisted anal ultrasound]]></article-title>
<source><![CDATA[Inflamm Bowel Dis]]></source>
<year>2009</year>
<volume>15</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>742-9</page-range></nlm-citation>
</ref>
<ref id="B25">
<label>25</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Maconi]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Tonolini]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Monteleone]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Bezzio]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Furfaro]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Villa]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Transperineal perineal ultrasound versus magnetic resonance imaging in the assessment of perianal Crohn's disease]]></article-title>
<source><![CDATA[Inflamm Bowel Dis]]></source>
<year>2013</year>
<volume>19</volume>
<numero>13</numero>
<issue>13</issue>
<page-range>2737-43</page-range></nlm-citation>
</ref>
<ref id="B26">
<label>26</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bezzio]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Bryant]]></surname>
<given-names><![CDATA[RV]]></given-names>
</name>
<name>
<surname><![CDATA[Manes]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Maconi]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Saibeni]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[New horizons in the imaging of perianal Crohn's disease: transperineal ultrasonography.]]></article-title>
<source><![CDATA[Expert Rev Gastroenterol Hepatol]]></source>
<year>2017</year>
<volume>11</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>523-30</page-range></nlm-citation>
</ref>
<ref id="B27">
<label>27</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wright]]></surname>
<given-names><![CDATA[EK]]></given-names>
</name>
<name>
<surname><![CDATA[Novak]]></surname>
<given-names><![CDATA[KL]]></given-names>
</name>
<name>
<surname><![CDATA[Lu]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Panaccione]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Ghosh]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Wilson]]></surname>
<given-names><![CDATA[SR]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Transperineal ultrasonography in perianal Crohn disease: A valuable imaging modality.]]></article-title>
<source><![CDATA[Can J Gastroenterol Hepatol.]]></source>
<year>2015</year>
<volume>29</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>445-7</page-range></nlm-citation>
</ref>
<ref id="B28">
<label>28</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kakkadasam Ramaswamy]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Vizhi N]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Yelsangikar]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Krishnamurthy]]></surname>
<given-names><![CDATA[AN]]></given-names>
</name>
<name>
<surname><![CDATA[Bhat]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Bhat]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Utility of bowel ultrasound in assessing disease activity in Crohn's disease]]></article-title>
<source><![CDATA[Indian J Gastroenterol]]></source>
<year>2020</year>
<volume>39</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>495-502</page-range></nlm-citation>
</ref>
<ref id="B29">
<label>29</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Futagami]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Haruma]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Hata]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Fujimura]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Tani]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Okamoto]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Development and validation of an ultrasonographic activity index of Crohn's disease]]></article-title>
<source><![CDATA[Eur J Gastroenterol Hepatol]]></source>
<year>1999</year>
<volume>11</volume>
<numero>9</numero>
<issue>9</issue>
<page-range>1007-12</page-range></nlm-citation>
</ref>
<ref id="B30">
<label>30</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Novak]]></surname>
<given-names><![CDATA[KL]]></given-names>
</name>
<name>
<surname><![CDATA[Kaplan]]></surname>
<given-names><![CDATA[GG]]></given-names>
</name>
<name>
<surname><![CDATA[Panaccione]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Afshar]]></surname>
<given-names><![CDATA[EE]]></given-names>
</name>
<name>
<surname><![CDATA[Tanyingoh]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Swain]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A Simple Ultrasound Score for the Accurate Detection of Inflammatory Activity in Crohn's Disease]]></article-title>
<source><![CDATA[Inflamm Bowel Dis]]></source>
<year>2017</year>
<volume>23</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>2001-10</page-range></nlm-citation>
</ref>
<ref id="B31">
<label>31</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Neye]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Voderholzer]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
<name>
<surname><![CDATA[Rickes]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Weber]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Wermke]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
<name>
<surname><![CDATA[Lochs]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluation of criteria for the activity of Crohn's disease by power Doppler sonography]]></article-title>
<source><![CDATA[Dig Dis]]></source>
<year>2004</year>
<volume>22</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>67-72</page-range></nlm-citation>
</ref>
<ref id="B32">
<label>32</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Allocca]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Craviotto]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Bonovas]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Furfaro]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Zilli]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Peyrin-Biroulet]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Predictive value of bowel ultrasound in Crohn's disease a 12-month prospective study]]></article-title>
<source><![CDATA[Clin Gastroenterol Hepatol]]></source>
<year>2021</year>
<volume>22</volume>
<page-range>S1542-3565</page-range></nlm-citation>
</ref>
<ref id="B33">
<label>33</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Novak]]></surname>
<given-names><![CDATA[KL]]></given-names>
</name>
<name>
<surname><![CDATA[Nylund]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Maaser]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Petersen]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Kucharzik]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Lu]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Expert Consensus on Optimal Acquisition and Development of the International Bowel Ultrasound Segmental Activity Score [IBUS-SAS] A Reliability and Inter-rater Variability Study on Intestinal Ultrasonography in Crohn's Disease]]></article-title>
<source><![CDATA[J Crohns Colitis]]></source>
<year>2021</year>
<volume>15</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>609-16</page-range></nlm-citation>
</ref>
<ref id="B34">
<label>34</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Paredes]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Ripollés]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Cortés]]></surname>
<given-names><![CDATA[X]]></given-names>
</name>
<name>
<surname><![CDATA[Reyes]]></surname>
<given-names><![CDATA[MD]]></given-names>
</name>
<name>
<surname><![CDATA[López]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez]]></surname>
<given-names><![CDATA[MJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Non-invasive diagnosis and grading of postsurgical endoscopic recurrence in Crohn's disease usefulness of abdominal ultrasonography and leucocyte scintigraphy]]></article-title>
<source><![CDATA[J Crohns Colitis]]></source>
<year>2010</year>
<volume>4</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>537-45</page-range></nlm-citation>
</ref>
<ref id="B35">
<label>35</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Maconi]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Carsana]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Fociani]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Sampietro]]></surname>
<given-names><![CDATA[GM]]></given-names>
</name>
<name>
<surname><![CDATA[Ardizzone]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Cristaldi]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Small bowel stenosis in Crohn's disease clinical, biochemical and ultrasonographic evaluation of histological features]]></article-title>
<source><![CDATA[Aliment Pharmacol Ther]]></source>
<year>2003</year>
<volume>18</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>749-56</page-range></nlm-citation>
</ref>
<ref id="B36">
<label>36</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lenze]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Wessling]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Bremer]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Ullerich]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Spieker]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Weckesser]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Detection and differentiation of inflammatory versus fibromatous Crohn's disease strictures prospective comparison of 18F-FDG-PET/CT, MR-enteroclysis, and transabdominal ultrasound versus endoscopic/histologic evaluation]]></article-title>
<source><![CDATA[Inflamm Bowel Dis]]></source>
<year>2012</year>
<volume>18</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>2252-60</page-range></nlm-citation>
</ref>
<ref id="B37">
<label>37</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rispo]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Imperatore]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Testa]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Mainenti]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[De Palma]]></surname>
<given-names><![CDATA[GD]]></given-names>
</name>
<name>
<surname><![CDATA[Luglio]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Bowel Damage in Crohn's Disease Direct Comparison of Ultrasonography-based and Magnetic Resonance-based Lemann Index]]></article-title>
<source><![CDATA[Inflamm Bowel Dis]]></source>
<year>2017</year>
<volume>23</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>143-51</page-range></nlm-citation>
</ref>
<ref id="B38">
<label>38</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fraquelli]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Castiglione]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Calabrese]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Maconi]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Impact of intestinal ultrasound on the management of patients with inflammatory bowel disease how to apply scientific evidence to clinical practice]]></article-title>
<source><![CDATA[Dig Liver Dis]]></source>
<year>2020</year>
<volume>52</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>9-18</page-range></nlm-citation>
</ref>
<ref id="B39">
<label>39</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Allocca]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Fiorino]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Bonovas]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Furfaro]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Gilardi]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Argollo]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Accuracy of Humanitas Ultrasound Criteria in Assessing Disease Activity and Severity in Ulcerative Colitis A Prospective Study.]]></article-title>
<source><![CDATA[J Crohns Colitis]]></source>
<year>2018</year>
<volume>12</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>1385-91</page-range></nlm-citation>
</ref>
<ref id="B40">
<label>40</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pascu]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Roznowski]]></surname>
<given-names><![CDATA[AB]]></given-names>
</name>
<name>
<surname><![CDATA[Müller]]></surname>
<given-names><![CDATA[HP]]></given-names>
</name>
<name>
<surname><![CDATA[Adler]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Wiedenmann]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Dignass]]></surname>
<given-names><![CDATA[AU]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Clinical relevance of transabdominal ultrasonography and magnetic resonance imaging in patients with inflammatory bowel disease of the terminal ileum and large bowel]]></article-title>
<source><![CDATA[Inflamm Bowel Dis]]></source>
<year>2004</year>
<volume>10</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>373-82</page-range></nlm-citation>
</ref>
<ref id="B41">
<label>41</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Parente]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Greco]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Molteni]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Cucino]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Maconi]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Sampietro]]></surname>
<given-names><![CDATA[GM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Role of early ultrasound in detecting inflammatory intestinal disorders and identifying their anatomical location within the bowel]]></article-title>
<source><![CDATA[Aliment Pharmacol Ther]]></source>
<year>2003</year>
<volume>18</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>1009-16</page-range></nlm-citation>
</ref>
<ref id="B42">
<label>42</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sagami]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Kobayashi]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Aihara]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Umeda]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Morikubo]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Matsubayashi]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Transperineal ultrasound predicts endoscopic and histological healing in ulcerative colitis]]></article-title>
<source><![CDATA[Aliment Pharmacol Ther]]></source>
<year>2020</year>
<volume>51</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>1373-83</page-range></nlm-citation>
</ref>
<ref id="B43">
<label>43</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Civitelli]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Di Nardo]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Oliva]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Nuti]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Ferrari]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Dilillo]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ultrasonography of the colon in pediatric ulcerative colitis: a prospective, blind, comparative study with colonoscopy]]></article-title>
<source><![CDATA[J Pediatr]]></source>
<year>2014</year>
<volume>165</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>78-84</page-range></nlm-citation>
</ref>
<ref id="B44">
<label>44</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hashimoto]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Kume]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Sato]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Kanemura]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Haga]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Ishii]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[P331 Development of a novel transabdominal ultrasound disease activity score in patients with ulcerative colitis (UCUS score).]]></article-title>
<source><![CDATA[J Crohns Colitis]]></source>
<year>2018</year>
<volume>12</volume>
<numero>^s1</numero>
<issue>^s1</issue>
<supplement>1</supplement>
</nlm-citation>
</ref>
<ref id="B45">
<label>45</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Parente]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Molteni]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Marino]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Colli]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Ardizzone]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Greco]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Are colonoscopy and bowel ultrasound useful for assessing response to short-term therapy and predicting disease outcome of moderate-to-severe forms of ulcerative colitis : a prospective study]]></article-title>
<source><![CDATA[Am J Gastroenterol]]></source>
<year>2010</year>
<volume>105</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>1150-7</page-range></nlm-citation>
</ref>
<ref id="B46">
<label>46</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ramaswamy]]></surname>
<given-names><![CDATA[KP]]></given-names>
</name>
<name>
<surname><![CDATA[Yelsangikar]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Nagarajan]]></surname>
<given-names><![CDATA[KV]]></given-names>
</name>
<name>
<surname><![CDATA[Nagar]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Bhat]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[P154 Development of a novel ultrasound based score for assessing disease activity in ulcerative colitis: preliminary results]]></article-title>
<source><![CDATA[J Crohns Colitis]]></source>
<year>2019</year>
<volume>13</volume>
<numero>^s1</numero>
<issue>^s1</issue>
<supplement>1</supplement>
</nlm-citation>
</ref>
<ref id="B47">
<label>47</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ishikawa]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Ando]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Watanabe]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[Ishiguro]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Maeda]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[Miyake]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Images of colonic real-time tissue sonoelastography correlate with those of colonoscopy and may predict response to therapy in patients with ulcerative colitis]]></article-title>
<source><![CDATA[BMC Gastroenterol]]></source>
<year>2011</year>
<volume>11</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>29</page-range></nlm-citation>
</ref>
<ref id="B48">
<label>48</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kinoshita]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Katsurada]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Nishida]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Omotehara]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Onishi]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Mabe]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Usefulness of transabdominal ultrasonography for assessing ulcerative colitis a prospective, multicenter study.]]></article-title>
<source><![CDATA[J Gastroenterol]]></source>
<year>2019</year>
<volume>54</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>521-9</page-range></nlm-citation>
</ref>
<ref id="B49">
<label>49</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Maconi]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Bollani]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Bianchi Porro]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ultrasonographic detection of intestinal complications in Crohn's disease]]></article-title>
<source><![CDATA[Dig Dis Sci]]></source>
<year>1996</year>
<volume>41</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>1643-8</page-range></nlm-citation>
</ref>
<ref id="B50">
<label>50</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kohn]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Cerro]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Milite]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[De Angelis]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Prantera]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Prospective evaluation of transabdominal bowel sonography in the diagnosis of intestinal obstruction in Crohn's disease comparison with plain abdominal film and small bowel enteroclysis]]></article-title>
<source><![CDATA[Inflamm Bowel Dis]]></source>
<year>1999</year>
<volume>5</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>153-7</page-range></nlm-citation>
</ref>
<ref id="B51">
<label>51</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gasche]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Moser]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Turetschek]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Schober]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Moeschl]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Oberhuber]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Transabdominal bowel sonography for the detection of intestinal complications in Crohn's disease]]></article-title>
<source><![CDATA[Gut]]></source>
<year>1999</year>
<volume>44</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>112-7</page-range></nlm-citation>
</ref>
<ref id="B52">
<label>52</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Neye]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Ensberg]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Rauh]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Peitz]]></surname>
<given-names><![CDATA[U]]></given-names>
</name>
<name>
<surname><![CDATA[Mönkemüller]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Treiber]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Impact of high-resolution transabdominal ultrasound in the diagnosis of complications of Crohn's disease]]></article-title>
<source><![CDATA[Scand J Gastroenterol]]></source>
<year>2010</year>
<volume>45</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>690-5</page-range></nlm-citation>
</ref>
<ref id="B53">
<label>53</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Parente]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Maconi]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Bollani]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Anderloni]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Sampietro]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Cristaldi]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Bowel ultrasound in assessment of Crohn's disease and detection of related small bowel strictures a prospective comparative study versus X-ray and intraoperative findings]]></article-title>
<source><![CDATA[Gut]]></source>
<year>2002</year>
<volume>50</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>490-5</page-range></nlm-citation>
</ref>
<ref id="B54">
<label>54</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kucharzik]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Maaser]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Intestinal ultrasound and management of small bowel Crohn's disease]]></article-title>
<source><![CDATA[Therap Adv Gastroenterol]]></source>
<year>2018</year>
<volume>11</volume>
<page-range>1756284818771367</page-range></nlm-citation>
</ref>
<ref id="B55">
<label>55</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Castiglione]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Mainenti]]></surname>
<given-names><![CDATA[PP]]></given-names>
</name>
<name>
<surname><![CDATA[De Palma]]></surname>
<given-names><![CDATA[GD]]></given-names>
</name>
<name>
<surname><![CDATA[Testa]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Bucci]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Pesce]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Noninvasive diagnosis of small bowel Crohn's disease direct comparison of bowel sonography and magnetic resonance enterography]]></article-title>
<source><![CDATA[Inflamm Bowel Dis]]></source>
<year>2013</year>
<volume>19</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>991-8</page-range></nlm-citation>
</ref>
<ref id="B56">
<label>56</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Calabrese]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[La Seta]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Buccellato]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Virdone]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Pallotta]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Corazziari]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Crohn's disease a comparative prospective study of transabdominal ultrasonography, small intestine contrast ultrasonography, and small bowel enema]]></article-title>
<source><![CDATA[Inflamm Bowel Dis]]></source>
<year>2005</year>
<volume>11</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>139-45</page-range></nlm-citation>
</ref>
<ref id="B57">
<label>57</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Parente]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Greco]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Molteni]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Anderloni]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Sampietro]]></surname>
<given-names><![CDATA[GM]]></given-names>
</name>
<name>
<surname><![CDATA[Danelli]]></surname>
<given-names><![CDATA[PG]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Oral contrast enhanced bowel ultrasonography in the assessment of small intestine Crohn's disease A prospective comparison with conventional ultrasound, x ray studies, and ileocolonoscopy]]></article-title>
<source><![CDATA[Gut]]></source>
<year>2004</year>
<volume>53</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>1652-7</page-range></nlm-citation>
</ref>
<ref id="B58">
<label>58</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pallotta]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Vincoli]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Montesani]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Chirletti]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Pronio]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Caronna]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Small intestine contrast ultrasonography (SICUS) for the detection of small bowel complications in crohn's disease a prospective comparative study versus intraoperative findings]]></article-title>
<source><![CDATA[Inflamm Bowel Dis]]></source>
<year>2012</year>
<volume>18</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>74-84</page-range></nlm-citation>
</ref>
<ref id="B59">
<label>59</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Calabrese]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Zorzi]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Onali]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Stasi]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Fiori]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Prencipe]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Accuracy of small-intestine contrast ultrasonography, compared with computed tomography enteroclysis, in characterizing lesions in patients with Crohn's disease]]></article-title>
<source><![CDATA[Clin Gastroenterol Hepatol]]></source>
<year>2013</year>
<volume>11</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>950-5</page-range></nlm-citation>
</ref>
<ref id="B60">
<label>60</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ripollés]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Rausell]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Paredes]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Grau]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez]]></surname>
<given-names><![CDATA[MJ]]></given-names>
</name>
<name>
<surname><![CDATA[Vizuete]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effectiveness of contrast-enhanced ultrasound for characterisation of intestinal inflammation in Crohn's disease a comparison with surgical histopathology analysis]]></article-title>
<source><![CDATA[J Crohns Colitis]]></source>
<year>2013</year>
<volume>7</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>120-8</page-range></nlm-citation>
</ref>
<ref id="B61">
<label>61</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bettenworth]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Bokemeyer]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Baker]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Mao]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Parker]]></surname>
<given-names><![CDATA[CE]]></given-names>
</name>
<name>
<surname><![CDATA[Nguyen]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Assessment of Crohn's disease-associated small bowel strictures and fibrosis on cross-sectional imaging a systematic review]]></article-title>
<collab>Stenosis Therapy and Anti-Fibrotic Research Consortium</collab>
<source><![CDATA[Gut]]></source>
<year>2019</year>
<volume>68</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>1115-26</page-range></nlm-citation>
</ref>
<ref id="B62">
<label>62</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ripollés]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez-Pérez]]></surname>
<given-names><![CDATA[MJ]]></given-names>
</name>
<name>
<surname><![CDATA[Paredes]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Vizuete]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[García-Martínez]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Jiménez-Restrepo]]></surname>
<given-names><![CDATA[DH]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Contrast-enhanced ultrasound in the differentiation between phlegmon and abscess in Crohn's disease and other abdominal conditions]]></article-title>
<source><![CDATA[Eur J Radiol]]></source>
<year>2013</year>
<volume>82</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>e525-31</page-range></nlm-citation>
</ref>
<ref id="B63">
<label>63</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Esteban]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Aleixandre]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Hurtado]]></surname>
<given-names><![CDATA[MJ]]></given-names>
</name>
<name>
<surname><![CDATA[Maldonado]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Mora]]></surname>
<given-names><![CDATA[FJ]]></given-names>
</name>
<name>
<surname><![CDATA[Nogués]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Contrast-enhanced power Doppler ultrasound in the diagnosis and follow-up of inflammatory abdominal masses in Crohn's disease]]></article-title>
<source><![CDATA[Eur J Gastroenterol Hepatol]]></source>
<year>2003</year>
<volume>15</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>253-9</page-range></nlm-citation>
</ref>
<ref id="B64">
<label>64</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Harbord]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Eliakim]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Bettenworth]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Karmiris]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Katsanos]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Kopylov]]></surname>
<given-names><![CDATA[U]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Third European Evidence-based Consensus on Diagnosis and Management of Ulcerative Colitis Part 2: current Management]]></article-title>
<collab>European Crohn's and Colitis Organisation [ECCO]</collab>
<source><![CDATA[J Crohns Colitis]]></source>
<year>2017</year>
<volume>11</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>769-84</page-range></nlm-citation>
</ref>
<ref id="B65">
<label>65</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Arienti]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Campieri]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Boriani]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Gionchetti]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Califano]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Giancane]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Management of severe ulcerative colitis with the help of high resolution ultrasonography]]></article-title>
<source><![CDATA[Am J Gastroenterol]]></source>
<year>1996</year>
<volume>91</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>2163-9</page-range></nlm-citation>
</ref>
<ref id="B66">
<label>66</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Smith]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Taylor]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Friedman]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Swaine]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Gibson]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Gibson]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Early assessment with gastrointestinal ultrasound in patients hospitalised for a flare of ulcerative colitis and predicting the need for salvage therapy: a pilot study.]]></article-title>
<source><![CDATA[Ultrasound Med Biol]]></source>
<year>2021</year>
<numero>5</numero>
<issue>5</issue>
<page-range>5629-3</page-range></nlm-citation>
</ref>
<ref id="B67">
<label>67</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Scarallo]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Maniscalco]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Paci]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Renzo]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Naldini]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Barp]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Bowel Ultrasound Scan Predicts Corticosteroid Failure in Children With Acute Severe Colitis]]></article-title>
<source><![CDATA[J Pediatr Gastroenterol Nutr]]></source>
<year>2020</year>
<volume>71</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>46-51</page-range></nlm-citation>
</ref>
<ref id="B68">
<label>68</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ripollés]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Paredes]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez-Pérez]]></surname>
<given-names><![CDATA[MJ]]></given-names>
</name>
<name>
<surname><![CDATA[Rimola]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Jauregui-Amezaga]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Bouzas]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ultrasonographic Changes at 12 Weeks of Anti-TNF Drugs Predict 1-year Sonographic Response and Clinical Outcome in Crohn's Disease A Multicenter Study]]></article-title>
<source><![CDATA[Inflamm Bowel Dis]]></source>
<year>2016</year>
<volume>22</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>2465-73</page-range></nlm-citation>
</ref>
<ref id="B69">
<label>69</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Maconi]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Ardizzone]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Parente]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Bianchi Porro]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ultrasonography in the evaluation of extension, activity, and follow-up of ulcerative colitis]]></article-title>
<source><![CDATA[Scand J Gastroenterol]]></source>
<year>1999</year>
<volume>34</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>1103-7</page-range></nlm-citation>
</ref>
<ref id="B70">
<label>70</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kucharzik]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Wittig]]></surname>
<given-names><![CDATA[BM]]></given-names>
</name>
<name>
<surname><![CDATA[Helwig]]></surname>
<given-names><![CDATA[U]]></given-names>
</name>
<name>
<surname><![CDATA[Börner]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Rössler]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Rath]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[TRUST study group. Use of Intestinal Ultrasound to Monitor Crohn's Disease Activity.]]></article-title>
<source><![CDATA[Clin Gastroenterol Hepatol]]></source>
<year>2017</year>
<volume>15</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>535-42</page-range></nlm-citation>
</ref>
<ref id="B71">
<label>71</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Paredes]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Ripollés]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Cortés]]></surname>
<given-names><![CDATA[X]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez]]></surname>
<given-names><![CDATA[MJ]]></given-names>
</name>
<name>
<surname><![CDATA[Barrachina]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Abdominal sonographic changes after antibody to tumor necrosis factor (anti-TNF) alpha therapy in Crohn's Disease]]></article-title>
<source><![CDATA[Dig Dis Sci]]></source>
<year>2010</year>
<volume>55</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>404-10</page-range></nlm-citation>
</ref>
<ref id="B72">
<label>72</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Castiglione]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Imperatore]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Testa]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[De Palma]]></surname>
<given-names><![CDATA[GD]]></given-names>
</name>
<name>
<surname><![CDATA[Nardone]]></surname>
<given-names><![CDATA[OM]]></given-names>
</name>
<name>
<surname><![CDATA[Pellegrini]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Oneyear clinical outcomes with biologics in Crohn's disease transmural healing compared with mucosal or no healing]]></article-title>
<source><![CDATA[Aliment Pharmacol Ther]]></source>
<year>2019</year>
<volume>49</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>1026-39</page-range></nlm-citation>
</ref>
<ref id="B73">
<label>73</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kucharzik]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Wilkens]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Maconi]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[DOP10 Intestinal ultrasound response and transmural healing after ustekinumab induction in Crohn's disease Week 16 interim analysis of the STARDUST trial substudy]]></article-title>
<collab>D'Agostino MA.Le Bars M.Nazar M</collab>
<source><![CDATA[J Crohns Colitis]]></source>
<year>2020</year>
<volume>14</volume>
<numero>^s1</numero>
<issue>^s1</issue>
<supplement>1</supplement>
<page-range>S046-8</page-range></nlm-citation>
</ref>
<ref id="B74">
<label>74</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kucharzik]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Wilkens]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Maconi]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[LB12 Intestinal ultrasound response and transmural healing after 48 weeks of treatment with ustekinumab in Crohn's disease STARDUST trial substudy]]></article-title>
<source><![CDATA[United European Gastroenterol J]]></source>
<year>2020</year>
<volume>8</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>1258-75</page-range></nlm-citation>
</ref>
<ref id="B75">
<label>75</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Calabrese]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Rispo]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Zorzi]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ultrasonography tight control and monitoring in Crohn's disease during different biological therapies a multicenter study]]></article-title>
<source><![CDATA[Clin Gastroenterol Hepatol]]></source>
<year>2021</year>
<volume>21</volume>
<page-range>S1542-3565</page-range></nlm-citation>
</ref>
<ref id="B76">
<label>76</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zorzi]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Ghosh]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Chiaramonte]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Lolli]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Ventura]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Onali]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Response Assessed by Ultrasonography as Target of Biological Treatment for Crohn's Disease]]></article-title>
<source><![CDATA[Clin Gastroenterol Hepatol]]></source>
<year>2020</year>
<volume>18</volume>
<numero>9</numero>
<issue>9</issue>
<page-range>2030-7</page-range></nlm-citation>
</ref>
<ref id="B77">
<label>77</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Quaia]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Gennari]]></surname>
<given-names><![CDATA[AG]]></given-names>
</name>
<name>
<surname><![CDATA[Cova]]></surname>
<given-names><![CDATA[MA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Early Predictors of the Long-term Response to Therapy in Patients With Crohn Disease Derived From a Time-Intensity Curve Analysis After Microbubble Contrast Agent Injection]]></article-title>
<source><![CDATA[J Ultrasound Med]]></source>
<year>2019</year>
<volume>38</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>947-58</page-range></nlm-citation>
</ref>
<ref id="B78">
<label>78</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Goertz]]></surname>
<given-names><![CDATA[RS]]></given-names>
</name>
<name>
<surname><![CDATA[Klett]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Wildner]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Atreya]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Neurath]]></surname>
<given-names><![CDATA[MF]]></given-names>
</name>
<name>
<surname><![CDATA[Strobel]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Quantitative contrast-enhanced ultrasound for monitoring vedolizumab therapy in inflammatory bowel disease patients a pilot study]]></article-title>
<source><![CDATA[Acta Radiol]]></source>
<year>2018</year>
<volume>59</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>1149-56</page-range></nlm-citation>
</ref>
<ref id="B79">
<label>79</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Maaser]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Petersen]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Helwig]]></surname>
<given-names><![CDATA[U]]></given-names>
</name>
<name>
<surname><![CDATA[Fischer]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<name>
<surname><![CDATA[Roessler]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Rath]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Intestinal ultrasound for monitoring therapeutic response in patients with ulcerative colitis results from the TRUST&amp;UC study]]></article-title>
<collab>German IBD Study Group and the TRUST&amp;UC study groupGerman IBD Study Group and TRUST&amp;UC study group</collab>
<source><![CDATA[Gut]]></source>
<year>2020</year>
<volume>69</volume>
<numero>9</numero>
<issue>9</issue>
<page-range>1629-36</page-range></nlm-citation>
</ref>
<ref id="B80">
<label>80</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fraquelli]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Sarno]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Girelli]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Laudi]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Buscarini]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Villa]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Reproducibility of bowel ultrasonography in the evaluation of Crohn's disease]]></article-title>
<source><![CDATA[Dig Liver Dis]]></source>
<year>2008</year>
<volume>40</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>860-6</page-range></nlm-citation>
</ref>
<ref id="B81">
<label>81</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[De Voogd]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Wilkens]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Gecse]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Allocca]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Novak]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Lu]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A reliability study strong inter-observer agreement of an expert panel for intestinal ultrasound in ulcerative colitis.]]></article-title>
<source><![CDATA[J Crohns Colitis]]></source>
<year>2021</year>
<volume>15</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>1284-90</page-range></nlm-citation>
</ref>
<ref id="B82">
<label>82</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Calabrese]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Bowel ultrasound for the assessment of Crohn's disease]]></article-title>
<source><![CDATA[Gastroenterol Hepatol (N Y)]]></source>
<year>2011</year>
<volume>7</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>107-9</page-range></nlm-citation>
</ref>
<ref id="B83">
<label>83</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bots]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Nylund]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Lowenberg]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Gecse]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Intestinal ultrasound to assess disease activity in ulcerative colitis development of a novel UC-ultrasound index]]></article-title>
<collab>D'Haens G</collab>
<source><![CDATA[J Crohns Colitis]]></source>
<year>2021</year>
<volume>7</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>1264-71</page-range></nlm-citation>
</ref>
<ref id="B84">
<label>84</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Omotehara]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Nishida]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Kinoshita]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Validation of US evaluation of ulcerative colitis activity]]></article-title>
<source><![CDATA[Ultrasound Med Biol]]></source>
<year>2019</year>
<volume>45</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>1537-44</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
