PROSPECTIVE STUDY FOR COLORECTAL NEOPLASMS WITH VIRTUAL COLONOSCOPY OF COMPUTED TOMOGRAPY

Masatake MIURA; Junji YOSHINO; Kazuo INUI; Takao WAKABAYASHI; Kazumu OKUSHIMA; Takashi KOBAYASHI; Hironao MIYOSHI; Yuta NAKAMURA; Shinya WATANABE

doi:10.11280/gee1973b.43.2207

Masatake MIURA, Junji YOSHINO, Kazuo INUI, Takao WAKABAYASHI, Kazumu OKUSHIMA, Takashi KOBAYASHI, Hironao MIYOSHI, Yuta NAKAMURA, Shinya WATANABE

Author information

Masatake MIURA
Department of Internal Medicine, Second Teaching Hospital, Fujita Health University School of Medicine.
Junji YOSHINO
Department of Internal Medicine, Second Teaching Hospital, Fujita Health University School of Medicine.
Kazuo INUI
Department of Internal Medicine, Second Teaching Hospital, Fujita Health University School of Medicine.
Takao WAKABAYASHI
Department of Internal Medicine, Second Teaching Hospital, Fujita Health University School of Medicine.
Kazumu OKUSHIMA
Department of Internal Medicine, Second Teaching Hospital, Fujita Health University School of Medicine.
Takashi KOBAYASHI
Department of Internal Medicine, Second Teaching Hospital, Fujita Health University School of Medicine.
Hironao MIYOSHI
Department of Internal Medicine, Second Teaching Hospital, Fujita Health University School of Medicine.
Yuta NAKAMURA
Department of Internal Medicine, Second Teaching Hospital, Fujita Health University School of Medicine.
Shinya WATANABE
Department of Internal Medicine, Second Teaching Hospital, Fujita Health University School of Medicine.

Keywords: Virtual Colonoscopy, Helical CT

JOURNAL FREE ACCESS

2001 Volume 43 Issue 12 Pages 2207-2212

DOI https://doi.org/10.11280/gee1973b.43.2207

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Abstract

The purpose of this study was to evaluate of usefulness of Virtual Colonoscopy (VC) fordetection of colorectal neoplasms. Helical CT was acquired using 5mm slices in width. Fortysix patients underwent VC, and colonoscopy as the gold standard after VC under informedconsent. As a results of this prospective study, sensitivity of VC was 56.8%, specificity was80.8%, and accuracy was 66.7%. In lesions over 5mm in maximum length which is the samewidth of scan slice, the diagnostic value was improved as follows; sensitivity was 81.3%, specificity was 97.1%, and accuracy was 92%. ln conclusion, VC was thought to be useful forscreening of colorectal neoplasms.

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