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Japanese

Evaluation of Invasivity of Rectal Cancer by Endoscopic Ultrasonography (EUS), Computed Tomography (CT) and Magnetic Resonance Imaging (MRI) Norio Saitoh 1 , Takahisa Sano 1 1The First Department of Surgery, Ciba University School of Medicine Keyword: 直腸癌 , 深達度診断 , EUS , CT , MRI pp.1191-1198
Published Date 1993/10/25
DOI https://doi.org/10.11477/mf.1403106286
  • Abstract
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 Examinations by endoscopic ultrasonography (EUS), computed tomography (CT) and magnetic resonance imaging (MRI) were performed in 316 patients with primary rectal cancer to evaluate their preoperative diagnostic accuracy of local invasivity.

 Invasivity of rectal cancer was accurately predicted in 235 out of 280 patients (83.9%) by EUS, in 97 out of 146 patients (66.7%) by CT, and in 129 out of 152 cases (84.9%) by MRI. For a detailed examination of invasivity, EUS was superior to CT and MRI. EUS could detect the degree of cancerous invasion which was limited to whether the mucosal, submucosal or proper muscle layers. However, MRI was the best examination modality for detecting invasion to the other organs: positive predictive values were 33.3% by CT and 78.9% by MRI.

 In conclusion, it is very important to make a therapeutic plan for rectal cancer by putting the findings of EUS, CT and MRI together.


Copyright © 1993, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院

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