<?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>S2341-45452021000200087</article-id>
<article-id pub-id-type="doi">10.1159/000510024</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Clinical Performance of New Software to Automatically Detect Angioectasias in Small Bowel Capsule Endoscopy]]></article-title>
<article-title xml:lang="pt"><![CDATA[Performance clínica de um novo software para detetar automaticamente angiectasias na endoscopia por cápsula]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Costa]]></surname>
<given-names><![CDATA[Dalila]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
<xref ref-type="aff" rid="A a"/>
<xref ref-type="aff" rid="A3"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vieira]]></surname>
<given-names><![CDATA[Pedro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pinto]]></surname>
<given-names><![CDATA[Catarina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arroja]]></surname>
<given-names><![CDATA[Bruno]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Leal]]></surname>
<given-names><![CDATA[Tiago]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mendes]]></surname>
<given-names><![CDATA[Sofia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gonçalves]]></surname>
<given-names><![CDATA[Raquel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lima]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rolanda]]></surname>
<given-names><![CDATA[Carla]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
<xref ref-type="aff" rid="A a"/>
<xref ref-type="aff" rid="A3"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,University of Minho School of Medicine Life and Health Sciences Research Institute (ICVS)]]></institution>
<addr-line><![CDATA[Braga ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,PT Government Associate Laboratory ICVS/3B&#8217;s ]]></institution>
<addr-line><![CDATA[Guimarães/Braga ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Braga Hospital Gastroenterology Department ]]></institution>
<addr-line><![CDATA[Braga ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,University of Minho CMEMS-Uminho Research Unit ]]></institution>
<addr-line><![CDATA[Guimarães ]]></addr-line>
<country>Portugal</country>
</aff>
<pub-date pub-type="pub">
<day>30</day>
<month>04</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>30</day>
<month>04</month>
<year>2021</year>
</pub-date>
<volume>28</volume>
<numero>2</numero>
<fpage>87</fpage>
<lpage>96</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S2341-45452021000200087&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S2341-45452021000200087&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S2341-45452021000200087&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Background:  Video capsule endoscopy (VCE) revolutionized the diagnosis and management of obscure gastrointestinal bleeding, though the rate of detection of small bowel lesions by the physician is still disappointing. Our group developed a novel algorithm (CMEMS-Uminho) to automatically detect angioectasias which display greater accuracy in VCE static frames than other methods previously published. We aimed to evaluate the algorithm overall performance and assess its diagnostic yield and usability in clinical practice.  Methods: Algorithm overall performance was determined using 54 full-length VCE recordings. To assess its diagnostic yield and usability in clinical practice, 38 VCE examinations with the clinical diagnosis of angioectasias consecutively performed (2017-2018) were evaluated by three physicians with diferente experiences. The CMEMS-Uminho algorithm was also applied. The performance of the CMEMS-Uminho algorithm was defined by a positive concordance between a frame automatically selected by the software and a study independente capsule endoscopist.  Results: Overall performance in complete VCE recordings was 77.7%, and diagnostic yield was 94.7%. There were significant differences between physicians in regard to global detection rate (p &lt; 0.001), detection rate per capsule (p &lt; 0.001), diagnostic yield (p = 0.007), true positive rate (p &lt; 0.001), time (p &lt; 0.001), and speed viewing (p &lt; 0.001). The application of CMEMS-Uminho algorithm significantly enhanced all readers&#8217; global detection rate (p &lt; 0.001) and the differences between them were no longer observed.  Conclusion: The CMEMS-Uminho algorithm detained a good overall performance and was able to enhance physicians&#8217; performance, suggesting a potential usability of this tool in clinical practice.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo:  Introdução:  A endoscopia por cápsula (EC) revolucionou o diagnóstico da hemorragia gastrointestinal obscura, porém a taxa de deteção de lesões no intestino delgado pelo endoscopista permanece insatisfatória. Desenvolveu-se um novo algoritmo para a deteção automática de angioectasias, que revelou uma melhor acuidade na avaliação de imagens de EC que outros métodos previamente publicados. Pretende-se avaliar agora a performance global do algoritmo, o seu rendimento diagnóstico e a utilidade na prática clínica.  Métodos: A performance global do algoritmo foi avaliada com 54 vídeos de EC. Para avaliar o seu rendimento diagnóstico e utilidade na prática clínica, 38 EC consecutivas com diagnóstico clínico de angiectasias (2017-2018) foram analisadas por três médicos com experiência distinta. A performance do algoritmo CMEMS-Uminho foi definida por uma concordância positiva entre um frame selecionado automaticamente pelo software e um endoscopista de cápsula independente do estudo.  Resultados: O algoritmo CMEMS-Uminho revelou uma performance global de 77,7% e um rendimento diagnóstico de 94,7%. Os médicos apresentaram diferenças significativas na taxa de deteção global (p &lt; 0,001), taxa de deteção por cápsula (p &lt; 0,001), rendimento diagnóstico (p = 0,007), taxa de verdadeiros positivos (p &lt; 0,001), tempo (p &lt; 0,001) e velocidade de visualização (p &lt; 0,001). A aplicação do algoritmo CMEMS-Uminho melhorou significativamente a taxa de deteção dos médicos (p &lt; 0,001) e as diferenças entre eles diluiram-se após a sua aplicação.  Conclusão: O algoritmo CMEMS-Uminho deteve um bom desempenho global e foi capaz de melhorar o desempenho médico, sugerindo uma potencial utilidade desta ferramenta na prática clínica.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Video capsule endoscopy]]></kwd>
<kwd lng="en"><![CDATA[Angioectasias]]></kwd>
<kwd lng="en"><![CDATA[Automatic detection]]></kwd>
<kwd lng="en"><![CDATA[Algorithm]]></kwd>
<kwd lng="pt"><![CDATA[Endoscopia por cápsula]]></kwd>
<kwd lng="pt"><![CDATA[Angiectasias]]></kwd>
<kwd lng="pt"><![CDATA[Deteção automática]]></kwd>
<kwd lng="pt"><![CDATA[Algoritmo]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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