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Clin Endosc : Clinical Endoscopy



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1 "Joo Yong Song"
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Original Article
Diagnostic Accuracy and Interobserver Agreement in Predicting the Submucosal Invasion of Colorectal Tumors Using Gross Findings, Pit Patterns, and Microvasculatures
Hye Jung Choi, Bo-In Lee, Hwang Choi, Kyu Yong Choi, Sang-Woo Kim, Joo Yong Song, Jeong Seon Ji, Byung-Wook Kim
Clin Endosc 2013;46(2):168-171.   Published online March 31, 2013
AbstractAbstract PDFPubReaderePub

Depth of invasion is one of the most important factors for establishing treatment strategy for colorectal tumors.


Three blinded experts reviewed electronic photos and video clips of 33 early colorectal cancer-like lesions. They estimated the depth of invasion based on conventional white light endoscopy (CWE), magnifying chromoendoscopy (MCE), and magnifying narrow band imaging endoscopy (MNE).


The lesions included nine mucosal low-grade neoplasias, 16 mucosal high grade neoplasias, and eight carcinomas with invasion to the submucosal layer or beyond. The diagnostic accuracy for submucosal invasion by CWE ranged from 67% to 82%, while those by MCE and MNE ranged from 85% to 88% and 85% to 88%, respectively. The diagnostic accuracy significantly differed between CWE and MCE (p=0.034) and between CWE and MNE (p=0.039). The kappa values for CWE, MCE, and MNE among the endoscopists were 0.564, 0.673, and 0.673, respectively.


The estimation of submucosal invasion for early colorectal cancer-like lesions based on MCE or MNE is more accurate than CWE. MCE and MNE were demonstrated to have substantial agreement for predicting submucosal invasion.


Citations to this article as recorded by  
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    Clinical Endoscopy.2019; 52(2): 100.     CrossRef
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    Advances in Digestive Medicine.2016; 3(4): 161.     CrossRef
  • Brief Education on Microvasculature and Pit Pattern for Trainees Significantly Improves Estimation of the Invasion Depth of Colorectal Tumors
    Joon Sung Kim, Bo-In Lee, Hwang Choi, Bong Koo Kang, Jong In Kim, Hae Mi Lee, Eun-Joo Im, Byung-Wook Kim, Sang-Woo Kim, Myung-Gyu Choi, Kyu Yong Choi
    Gastroenterology Research and Practice.2014; 2014: 1.     CrossRef
  • Clinical Usefulness of Magnifying Chromoendoscopy and Magnifying Narrow Band Imaging Endoscopy for Predicting the Submucosal Invasion of Early Colorectal Cancers
    Kwang An Kwon, Yang Suh Ku
    Clinical Endoscopy.2013; 46(2): 113.     CrossRef
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