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Efficacy of flexible spectral imaging color enhancement on the detection of small intestinal diseases by capsule endoscopy
Author(s) -
Kobayashi Yuka,
Watabe Hirotsugu,
Yamada Atsuo,
Hirata Yoshihiro,
Yamaji Yutaka,
Yoshida Haruhiko,
Koike Kazuhiko
Publication year - 2012
Publication title -
journal of digestive diseases
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.684
H-Index - 51
eISSN - 1751-2980
pISSN - 1751-2972
DOI - 10.1111/j.1751-2980.2012.00641.x
Subject(s) - capsule endoscopy , medicine , lesion , gastroenterology , nuclear medicine , radiology , pathology
Objective The aim of this study was to estimate the efficacy of flexible spectral imaging color enhancement ( FICE ) on the detection of small intestinal diseases by capsule endoscopy ( CE ). Methods Six individuals without significant lesions and 18 patients with following diseases were selected: four tumors, five angioectasias, seven ulcerative diseases, one ulcerative lesion and tumor and one ulcerative lesion and angioectasia. Three endoscopists reviewed all CE videos on standard and three types of FICE modes and compared their sensitivity and specificity for detection of small intestinal diseases. Results The overall sensitivity of CE was 94.4% at standard mode, 90.7% at FICE channel ( C h) 1, 87.0% at FICE C h 2 and 87.0% at FICE C h 3 and the overall specificity of CE was 66.7%, 55.6%, 77.8% and 66.7%, respectively, per patient. There was no significant difference between the standard and each FICE mode. In per‐lesion analysis, FICE C h 1 detected more angioectasias and ulcerative lesions than the standard mode (angioectasia, 25.7 vs 21.0, P = 0.005; ulcerative lesions, 19.3 vs 14.0, P = 0.06). However, FICE C h 1 missed more tumors than the standard mode (4.3 vs 10.0, P = 0.003). Conclusions Although FICE C h 1 is better in detecting angioectasias and ulcerative lesions and worse in tumors or polyps than the standard mode, the patient‐based sensitivity and specificity of small intestinal diseases are not different between standard and each FICE mode. Further experiences with and improvement of FICE are required.