Document Detail


Appearance of enhanced tissue features in narrow-band endoscopic imaging.
MedLine Citation:
PMID:  15189095     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This study was performed to examine the usefulness of medical endoscopic imaging utilizing narrow-band illumination. The contrast between the vascular pattern and the adjacent mucosa of the underside of the human tongue was measured using five narrow-band illuminations and three broadband illuminations. The results demonstrate that the pathological features of a vascular pattern are dependent on the center wavelength and the bandwidth of illumination. By utilizing narrow-band illumination of 415+/-30 nm, the contrast of the capillary pattern in the superficial layer was markedly improved. This is an important benefit that is difficult to obtain with ordinary broadband illumination. The appearances of capillary patterns on color images were evaluated for three sets of filters. The narrow, band imaging (NBI) filter set (415+/-30 nm, 445+/-30 nm, 500+/-30 nm) was selected to achieve the preferred appearance of the vascular patterns for clinical tests. The results of clinical tests in colonoscopy and esophagoscopy indicated that NBI will be useful as a supporting method for observation of the endoscopic findings of early cancer.
Authors:
Kazuhiro Gono; Takashi Obi; Masahiro Yamaguchi; Nagaaki Ohyama; Hirohisa Machida; Yasushi Sano; Shigeaki Yoshida; Yasuo Hamamoto; Takao Endo
Related Documents :
21069075 - Contrast enhancement of underwater images with coherent optical image processors.
17357735 - Using uncorrupted neighborhoods of the pixels for impulsive noise suppression with anfis.
17281445 - The study of edge detection of cerebrovascular image based on gabor filter.
11666085 - Mapping the chemistry in nanostructured materials by energy-filtering transmission elec...
24298405 - Narrow band 3 × 3 mueller polarimetric endoscopy.
22055865 - The use of video image analysis for quantitative measurement of visible fat and lean in...
Publication Detail:
Type:  Comparative Study; Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of biomedical optics     Volume:  9     ISSN:  1083-3668     ISO Abbreviation:  J Biomed Opt     Publication Date:    2004 May-Jun
Date Detail:
Created Date:  2004-06-10     Completed Date:  2004-07-14     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9605853     Medline TA:  J Biomed Opt     Country:  United States    
Other Details:
Languages:  eng     Pagination:  568-77     Citation Subset:  IM    
Copyright Information:
(c) 2004 Society of Photo-Optical Instrumentation Engineers.
Affiliation:
Olympus Co., Ishikawa-cho, Hachioji-shi, Tokyo 192-8507, Japan. gono@isl.titech.ac.jp
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Barrett Esophagus / pathology*
Colonoscopy / methods
Colorimetry / methods*
Endoscopy / methods*
Esophagoscopy / methods
Humans
Image Enhancement / methods*
Mouth Mucosa / cytology*
Reproducibility of Results
Sensitivity and Specificity
Spectrum Analysis / methods*
Tongue / blood supply*,  cytology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Fourier transform infrared microspectroscopy as a quantitative diagnostic tool for assignment of pre...
Next Document:  Optical imaging of Renilla luciferase, synthetic Renilla luciferase, and firefly luciferase reporter...