Predicting Residual Rectal Adenocarcinoma in the Surgical Specimen after Preoperative Brachytherapy with Endoscopic Ultrasound
Author(s) -
Joseph Romagnuolo,
Josée Parent,
T. Vuong,
Mélanie Bélanger,
René P. Michel,
Paul Belliveau,
Judith L. Trudel
Publication year - 2004
Publication title -
canadian journal of gastroenterology
Language(s) - English
Resource type - Journals
eISSN - 1916-7237
pISSN - 0835-7900
DOI - 10.1155/2004/715393
Subject(s) - medicine , endoscopic ultrasound , brachytherapy , stage (stratigraphy) , radiology , lymph node , colorectal cancer , radiation therapy , nuclear medicine , cancer , paleontology , biology
A novel brachytherapy (BT) protocol evaluated at McGill University has shown promise in terms of downstaging and achieving high tumour sterilization rates in rectal cancer. Endoscopic ultrasound (EUS) has emerged as the imaging modality of choice for local staging of rectal cancer. However, external beam radiotherapy appears to decrease the accuracy of EUS from 85% to 40%. The aim of the present study was to prospectively evaluate the accuracy of EUS in assessing the response of rectal cancer to BT.
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