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KMID : 1188320120060020218
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Gut and Liver
2012 Volume.6 No. 2 p.218 ~ p.222
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Role of Enhanced Visibility in Evaluating Polyposis Syndromes Using a Newly Developed Contrast Image Capsule Endoscope
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Ken Hatogai
Naoki Hosoe
Hiroyuki Imaeda
Jean-Francois Rey
Sawako Okada
Yuka Ishibashi
Kayoko Kimura
Kazuaki Yoneno
Shingo Usui
Yosuke Ida
Nobuhiro Tsukada
Takanori Kanai
Toshifumi Hibi
Haruhiko Ogata
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Abstract
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Background/Aims:A flexible spectral imaging color enhancement system was installed in new capsule software for video capsule endoscopy. Contrast image capsule endoscopy (CICE) is a novel technology using light-emitting diodes selected for the main absorption range of hemoglobin. We assessed the feasibility and diagnostic effi cacy for small bowel surveillance in patients with polyposis syndromes.
Methods:Six patients with polyposis syndromes, four with familial adenomatous polyposis and one each with Cowden syndrome (CS) and Cronkhite-Canada syndrome (CCS) were examined using CICE. We conducted three evaluations to assess the effect on the numbers of the detected polyps; compare polyp diagnostic rates between adenoma and hamartoma; and assess polyp visibility.
Results:The numbers of detected polyps and diagnostic accuracy did not differ signifi cantly between pre-contrast and contrast images. However, 50% of the adenomatous polyps displayed enhanced visibility on contrast images. CICE contrast images exhibited clearly demarcated lesions and improved the visibility of minute structures of adenomatous polyps. Hamartomatous polyp micro-structures in patients with CS and CCS were more clearly visualized on contrast than pre-contrast images.
Conclusions:CICE is an effective tool for enhancing the visibility of polyps in patients with polyposis syndrome.
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KEYWORD
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Video capsule endoscopy, Image enhanced endoscopy, Contrast image capsule endoscopy, Polyposis syndrome
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