Interobserver and intra-observer consistency in the endoscopic assessment of colonic pit patterns

Qiyang Huang, Norio Fukami, Hiroshi Kashida, Tsukasa Takeuchi, Etsuko Kogure, Toshinori Kurahashi, Etienne Stahl, Yui Kudo, Hiroyuki Kimata, Shin Ei Kudo

Research output: Contribution to journalArticle

76 Citations (Scopus)

Abstract

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.

Original languageEnglish (US)
Pages (from-to)520-526
Number of pages7
JournalGastrointestinal Endoscopy
Volume60
Issue number4
DOIs
StatePublished - Oct 1 2004
Externally publishedYes

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Observer Variation
Adenoma
Japan
Differential Diagnosis
Observation
Carcinoma

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Gastroenterology

Cite this

Interobserver and intra-observer consistency in the endoscopic assessment of colonic pit patterns. / Huang, Qiyang; Fukami, Norio; Kashida, Hiroshi; Takeuchi, Tsukasa; Kogure, Etsuko; Kurahashi, Toshinori; Stahl, Etienne; Kudo, Yui; Kimata, Hiroyuki; Kudo, Shin Ei.

In: Gastrointestinal Endoscopy, Vol. 60, No. 4, 01.10.2004, p. 520-526.

Research output: Contribution to journalArticle

Huang, Q, Fukami, N, Kashida, H, Takeuchi, T, Kogure, E, Kurahashi, T, Stahl, E, Kudo, Y, Kimata, H & Kudo, SE 2004, 'Interobserver and intra-observer consistency in the endoscopic assessment of colonic pit patterns', Gastrointestinal Endoscopy, vol. 60, no. 4, pp. 520-526. https://doi.org/10.1016/S0016-5107(04)01880-2
Huang, Qiyang ; Fukami, Norio ; Kashida, Hiroshi ; Takeuchi, Tsukasa ; Kogure, Etsuko ; Kurahashi, Toshinori ; Stahl, Etienne ; Kudo, Yui ; Kimata, Hiroyuki ; Kudo, Shin Ei. / Interobserver and intra-observer consistency in the endoscopic assessment of colonic pit patterns. In: Gastrointestinal Endoscopy. 2004 ; Vol. 60, No. 4. pp. 520-526.
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AU - Kurahashi, Toshinori

AU - Stahl, Etienne

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