TY - JOUR
T1 - Interobserver and intra-observer consistency in the endoscopic assessment of colonic pit patterns
AU - Huang, Qiyang
AU - Fukami, Norio
AU - Kashida, Hiroshi
AU - Takeuchi, Tsukasa
AU - Kogure, Etsuko
AU - Kurahashi, Toshinori
AU - Stahl, Etienne
AU - Kudo, Yui
AU - Kimata, Hiroyuki
AU - Kudo, Shin Ei
N1 - Funding Information:
Supported partly by a Sasakawa Medical Fellowship.
PY - 2004/10
Y1 - 2004/10
N2 - Background: The colonic pit pattern is recognized as an aid to the differential diagnosis between hyperplastic lesions, adenoma, and carcinoma, and is a focus for observation by magnification chromoendoscopy, especially in Japan. This study evaluated intra- and interobserver agreement of experienced endoscopists in the assessment of colonic pit patterns when using the Kudo classification. Methods: A total of 220 magnification chromoendoscopic pictures of colonic lesions were selected, of which 215 were collected from a consecutive series of patients. The pictures were randomly displayed twice to 6 experienced endoscopists at an interval of 1 week. Each picture was assessed for predominant pit pattern by using the classification of Kudo. Histopathologic diagnosis also was predicted based on the pit pattern diagnosis. Kappa statistics were used to estimate intra- and interobserver variation. Results: The mean (standard deviation) inter- and intra-observer kappa values for experienced endoscopists were 0.716 (0.031) and 0.810 (0.084), respectively. For prediction of histopathology according to the pit pattern diagnosis, the mean (standard deviation) inter- and intra-observer kappa values were 0.776 (0.032) (p = 0.001) and 0.862 (0.069) (p = 0.028), respectively. Conclusions: For experienced endoscopists, the inter- and intra-observer reproducibility of the classification of colonic pit pattern is good.
AB - Background: The colonic pit pattern is recognized as an aid to the differential diagnosis between hyperplastic lesions, adenoma, and carcinoma, and is a focus for observation by magnification chromoendoscopy, especially in Japan. This study evaluated intra- and interobserver agreement of experienced endoscopists in the assessment of colonic pit patterns when using the Kudo classification. Methods: A total of 220 magnification chromoendoscopic pictures of colonic lesions were selected, of which 215 were collected from a consecutive series of patients. The pictures were randomly displayed twice to 6 experienced endoscopists at an interval of 1 week. Each picture was assessed for predominant pit pattern by using the classification of Kudo. Histopathologic diagnosis also was predicted based on the pit pattern diagnosis. Kappa statistics were used to estimate intra- and interobserver variation. Results: The mean (standard deviation) inter- and intra-observer kappa values for experienced endoscopists were 0.716 (0.031) and 0.810 (0.084), respectively. For prediction of histopathology according to the pit pattern diagnosis, the mean (standard deviation) inter- and intra-observer kappa values were 0.776 (0.032) (p = 0.001) and 0.862 (0.069) (p = 0.028), respectively. Conclusions: For experienced endoscopists, the inter- and intra-observer reproducibility of the classification of colonic pit pattern is good.
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U2 - 10.1016/S0016-5107(04)01880-2
DO - 10.1016/S0016-5107(04)01880-2
M3 - Article
C2 - 15472672
AN - SCOPUS:4744338212
SN - 0016-5107
VL - 60
SP - 520
EP - 526
JO - Gastrointestinal endoscopy
JF - Gastrointestinal endoscopy
IS - 4
ER -