Saudi Journal of Gastroenterology
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ORIGINAL ARTICLE
Year : 2015  |  Volume : 21  |  Issue : 6  |  Page : 418-422

Blue mode imaging may improve the detection and visualization of small-bowel lesions: A capsule endoscopy study


1 Second Department of Internal Medicine, Osaka Medical College, Takatsuki, Osaka, Japan; Department of Internal Medicine, Sohag University, Sohag, Egypt
2 Second Department of Internal Medicine, Osaka Medical College, Takatsuki, Osaka, Japan
3 Department of Internal Medicine, Sohag University, Sohag, Egypt

Correspondence Address:
Dr. Usama M Abdelaal
Second Department of Internal Medicine, Osaka Medical College, 2-7 Daigakumachi, Takatsuki, Osaka - 568-8686, Japan

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Source of Support: None, Conflict of Interest: There is no conflict of interest with regard to this manuscript with any of the listed authors.


DOI: 10.4103/1319-3767.170954

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Background/Aims: Diagnostic miss rate and time consumption are the two challenging limitations of small-bowel capsule endoscopy (SBCE). In this study, we aimed to know whether using of the blue mode (BM) combined with QuickView (QV) at a high reviewing speed could influence SBCE interpretation and accuracy. Materials and Methods: Seventy CE procedures were totally reviewed in four different ways; (1) using the conventional white light, (2) using the BM, [on a viewing speed at 10 frames per second (fps)], (3) using white light, and (4) using the BM (on a viewing speed at 20 fps). In study A, the results of (1) were compared with those of (2), and in study B, the results of (3) and (4) were separately compared with those of (1). Results: In study A, the total number of the vascular (P < 0.001) and the inflammatory lesions (P = 0.005) detected by BM was significantly higher than that detected by the white light. No lesion was found using the white light that was not detected by the BM. Moreover, the BM highly improved the image quality of all the vascular lesions and the erythematous ones from the nonvascular lesions. In study B, the total number of only the vascular lesions, detected by the BM on a rapid speed of viewing at 20 fps was significantly higher than that detected by the white light (P = 0.035). However, the true miss rate for the BM was 4%. Conclusion: BM imaging is a new method that improved the detection and visualization of the vascular and erythematous nonvascular lesions of SB as compared with the conventional white light imaging. Using of the BM at a slow viewing speed, markedly reduced the diagnostic miss rate of CE.


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