1989
DOI: 10.1148/radiology.170.2.2643135
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Staging of rectal carcinoma: prospective comparison of endorectal US and CT.

Abstract: One hundred two consecutive patients undergoing surgical treatment for rectal cancer were examined by means of endorectal ultrasound (US) for staging before surgery. Eighty-one of these patients also underwent staging with computed tomography (CT). The diagnostic sensitivity of endorectal US in detection of tumor extension into fat was 67%; specificity, 77%; positive predictive value, 73%; and negative predictive value, 72%. The sensitivity of CT for this finding was 53%; specificity, 53%; positive predictive … Show more

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Cited by 315 publications
(113 citation statements)
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“…In one study the sensitivity and specificity of CT for detecting mesorectal fat invasion was 53% (40). In a recently published meta-analysis of 78 studies, CT was 73% accurate for T staging (43).…”
Section: Discussionmentioning
confidence: 99%
“…In one study the sensitivity and specificity of CT for detecting mesorectal fat invasion was 53% (40). In a recently published meta-analysis of 78 studies, CT was 73% accurate for T staging (43).…”
Section: Discussionmentioning
confidence: 99%
“…Ao analisar o envolvimento ganglionar, observou-se uma sensibilidade de 39%, o que difere de alguns estudos publicados que apontam para valores mais altos de sensibilidade, mas que vai ao encontro de outro estudo, que demonstra uma sensibilidade de 33% na avaliação do N 23,25,26,40 . Isso poderá ser explicado pelo enviesamento de publicação referido anteriormente, mas também pelo facto da inclusão nesses estudos de doentes submetidos à terapia neoadjuvante, que poderá resultar numa subestimação da sensibilidade da ecografia endorectal 39,40 .…”
Section: Discussionunclassified
“…Esse valor é ligeiramente superior ao encontrado na literatura que aponta valores de especificidade entre 76 e 86% 23,19,25,26,39 . Em relação ao valor preditivo positivo e negativo, observou-se um valor preditivo positivo e negativo de 62 e 78%, respectivamente.…”
Section: Discussionunclassified
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