Journal ArticleDOI
Endoscopic observation of tissue by narrowband illumination
Kazuhiro Gono,Kenji Yamazaki,Nobuyuki Doguchi,Tetsuo Nonami,Takashi Obi,Masahiro Yamaguchi,Nagaaki Ohyama,Hirohisa Machida,Yasushi Sano,Shigeaki Yoshida,Yasuo Hamamoto,Takao Endo +11 more
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TLDR
A new illumination method for a medical endoscope: narrow band imaging (NBI), in which the spectral bandwidth of the filtered light is narrowed, which has been shown that NBI can enhance the capillary pattern and the crypt pattern on the mucosa.Abstract:
We propose a new illumination method for a medical endoscope: narrow band imaging (NBI), in which the spectral bandwidth of the filtered light is narrowed. To confirm how the spectral specifications of the filtered light influence a reproduced image, an experiment was conducted observing the endoscopic images of the back mucosa of a human tongue. In addition, the effect of NBI on endoscopic images was investigated through preliminary clinical tests in colonoscopy and upper gastrointestinal endoscopy. It has been shown that NBI can enhance the capillary pattern and the crypt pattern on the mucosa. These patterns are useful features for diagnosing an early cancer.read more
Citations
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Journal ArticleDOI
Early Detection of Superficial Squamous Cell Carcinoma in the Head and Neck Region and Esophagus by Narrow Band Imaging: A Multicenter Randomized Controlled Trial
Manabu Muto,Keiko Minashi,Tomonori Yano,Yutaka Saito,Ichiro Oda,Satoru Nonaka,Tai Omori,Hitoshi Sugiura,Kenichi Goda,Mitsuru Kaise,Haruhiro Inoue,Hideki Ishikawa,Atsushi Ochiai,Tadakazu Shimoda,Hidenobu Watanabe,Hisao Tajiri,Daizo Saito +16 more
TL;DR: NBI could be the standard examination for the early detection of superficial cancer in the H&N region and the esophagus between conventional white light imaging and NBI in high-risk patients.
Journal ArticleDOI
Squamous cell carcinoma in situ at oropharyngeal and hypopharyngeal mucosal sites
Manabu Muto,B S Mari Nakane,Chikatoshi Katada,Yasushi Sano,Atsushi Ohtsu,Hiroyasu Esumi,Satoshi Ebihara,Shigeaki Yoshida +7 more
TL;DR: It has been extremely difficult to detect carcinoma in situ at head and neck mucosal sites during routine endoscopy, even after numerous passes of the endoscope through the oral cavity and the pharynx.
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Magnifying narrowband imaging is more accurate than conventional white-light imaging in diagnosis of gastric mucosal cancer.
Yasumasa Ezoe,Manabu Muto,Noriya Uedo,Hisashi Doyama,Kenshi Yao,Ichiro Oda,Kazuhiro Kaneko,Yoshiro Kawahara,Chizu Yokoi,Yasushi Sugiura,Hideki Ishikawa,Yoji Takeuchi,Yoshibumi Kaneko,Yutaka Saito +13 more
TL;DR: M-NBI, in conjunction with C-WLI, identifies small, depressed gastric mucosal cancers with 96.6% accuracy, 95.0% sensitivity, and 96.8% specificity, better than for C- WLI or M-N BI alone.
Journal ArticleDOI
Meshed capillary vessels by use of narrow-band imaging for differential diagnosis of small colorectal polyps.
Yasushi Sano,Hiroaki Ikematsu,Kuang I. Fu,Fabian Emura,Atsushi Katagiri,Takahiro Horimatsu,Kazuhiro Kaneko,Roy Soetikno,Shigeaki Yoshida +8 more
TL;DR: Observation of surface MC vessels by magnifying NBI is a useful and simple method for differentiating colorectal nonneoplastic and neoplastic polyps.
Journal ArticleDOI
Prospective, controlled tandem endoscopy study of narrow band imaging for dysplasia detection in Barrett's Esophagus
Herbert C. Wolfsen,Julia E. Crook,Murli Krishna,Sami R. Achem,Kenneth R. DeVault,Ernest P. Bouras,David S. Loeb,Mark E. Stark,Timothy A. Woodward,Lois L. Hemminger,Frances K. Cayer,Michael B. Wallace +11 more
TL;DR: In patients evaluated for Barrett's esophagus with dysplasia, NBI detected significantly more patients with Dysplasia and higher grades of dyspl Asia with fewer biopsy samples compared with standard resolution endoscopy.
References
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MCML-Monte Carlo modeling of light transport in multi-layered tissues
TL;DR: A Monte Carlo model of steady-state light transport in multi-layered tissues (MCML) has been coded in ANSI Standard C; therefore, the program can be used on various computers and has been in the public domain since 1992.
Journal ArticleDOI
MCML—Monte Carlo modeling of light transport in multi-layered tissues
TL;DR: A Monte Carlo model of steady-state light transport in multi-layered tissues (MCML) has been coded in ANSI Standard C; therefore, the program can be used on various computers as mentioned in this paper.
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Diagnosis of colorectal tumorous lesions by magnifying endoscopy
TL;DR: The magnifying colonoscope provides an accurate instantaneous assessment of the histology of colorectal tumorous lesions and may help in decision making during colonoscopy.
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Mechanisms of light scattering from biological cells relevant to noninvasive optical-tissue diagnostics
Judith R. Mourant,James P. Freyer,Andreas H. Hielscher,Angelica A. Eick,Dan Shen,Tamara M. Johnson +5 more
TL;DR: Optical diagnostics are expected to be sensitive to organelle morphology but not directly to the size and shape of the cells, as measured of isolated organelles indicate.
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Colorectal tumours and pit pattern.
TL;DR: There were associations between individual pits and crypts in colorectal tumours and there was a correlation between pit pattern and the structure of the underlying crypt or gland.