|
KMID : 0359020130460020168
|
|
Korean Journal of Gastrointestinal Endoscopy
2013 Volume.46 No. 2 p.168 ~ p.171
|
|
|
Diagnostic Accuracy and Interobserver Agreement in Predicting the Submucosal Invasion of Colorectal Tumors Using Gross Findings, Pit Patterns, and Microvasculatures
|
|
Choi Hye-Jung
Lee Bo-In
Choi Hwang
Kim Sang-Woo
Song Joo-Yong
Ji Jeong-Seon
Kim Byung-Wook
|
|
|
Abstract
|
|
|
Background/Aims: Depth of invasion is one of the most important factors for establishing treatment strategy for colorectal tumors.
Methods: 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).
Results: 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.
Conclusions: 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.
|
|
|
KEYWORD
|
|
|
Colorectal neoplasms, Colonoscopy, Neoplasm staging
|
|
|
FullTexts / Linksout information
|
|
|
|
|
Listed journal information
|
|
  
|
|