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Ability of a novel blue laser imaging system for the diagnosis of colorectal polyps.
- Source :
-
Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society [Dig Endosc] 2014 Mar; Vol. 26 (2), pp. 250-8. Date of Electronic Publication: 2013 Jun 03. - Publication Year :
- 2014
-
Abstract
- Background: A new endoscope system with a laser light source, blue laser imaging (BLI), has been developed by Fujifilm that allows for narrow-band light observation. The aim of the present study was to evaluate the utility of BLI for the diagnosis of colorectal polyps.<br />Methods: We retrospectively analyzed 314 colorectal polyps that were examined with BLI observation at Kyoto Prefectural University of Medicine between September 2011 and January 2013. The surface and vascular patterns of polyps detected by published narrow-band imaging magnification: Hiroshima classification were used. Correlations were determined between the classifications and the histopathological diagnoses. Additionally, the ability of BLI without magnification to differentiate between neoplastic or non-neoplastic polyps was analyzed.<br />Results: A total of 41 hyperplastic polyps, 168 adenomas, 80 intramucosal cancer, 11 shallowly invaded submucosal cancer, and 14 deeply invaded submucosal cancer were analyzed.Hyperplastic polyp was observed in 100% of Type A lesions (39 lesions), adenoma was observed in 89.3% of Type B lesions (159 lesions), intramucosal cancer and shallowly invaded submucosal cancer was observed in 69.6% of Type C1 (92 lesions) and in 84.6% of Type C2 (13 lesions), and deeply invaded submucosal cancer was observed in 81.8% of Type C3 lesions (11 lesions). The overall diagnostic accuracy of BLI with magnification was 84.3%. Additionally, the diagnostic accuracy of BLI without magnification for differentiating between neoplastic and non-neoplastic polyps <10 mm in diameter was 95.2%, which was greater than that of white light (83.2%).<br />Conclusion: BLI was useful for the diagnosis of colorectal polyps.<br /> (© 2013 The Authors. Digestive Endoscopy © 2013 Japan Gastroenterological Endoscopy Society.)
- Subjects :
- Adult
Aged
Aged, 80 and over
Biopsy
Colonic Polyps surgery
Diagnosis, Differential
Equipment Design
Female
Follow-Up Studies
Humans
Male
Middle Aged
Prognosis
Rectum surgery
Reproducibility of Results
Young Adult
Colonic Polyps diagnosis
Colonoscopy methods
Lasers
Narrow Band Imaging instrumentation
Rectum pathology
Subjects
Details
- Language :
- English
- ISSN :
- 1443-1661
- Volume :
- 26
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society
- Publication Type :
- Academic Journal
- Accession number :
- 23731034
- Full Text :
- https://doi.org/10.1111/den.12127