Results 291 to 300 of about 270,726 (339)

Narrow band imaging technique

Techniques in Gastrointestinal Endoscopy, 2003
Narrow band imaging (NBI) is a novel technique that enhances the diagnostic capability of endoscopes in charactering tissues by using narrow-bandwidth filters in a red-green-blue sequential illumination system. The blue filter is designed to correspond to the peak absorption spectrum of hemoglobin to emphasize the image of capillary vessels on surface ...
Hitoshi Mizuno, Kazuhiro Gono, Sakae Takehana, Tetsuo Nonami, Kazunari Nakamura   +4 more
openaire   +1 more source

Narrow band imaging in Barrett’s esophagus

Expert Review of Gastroenterology & Hepatology, 2007
Barrett's esophagus is a well-recognized premalignant condition for the development of esophageal adenocarcinoma, the most rapidly rising cancer in the USA and Western Europe. Detection of intestinal metaplasia and neoplasia arising in Barrett's esophagus patients continues to be a challenge.
Sachin, Wani, Prateek, Sharma
openaire   +2 more sources

Narrow-Band Imaging: Potential and Limitations

Endoscopy, 2006
The purpose of introducing optical electronics into video endoscopes is to improve the accuracy of diagnosis through image processing and digital technology. Narrow-band imaging (NBI), one of the most recent techniques, involves the use of interference filters to illuminate the target in narrowed red, green and blue (R/G/B) bands of the spectrum.
K, Kuznetsov, R, Lambert, J-F, Rey
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High-resolution narrow band imaging endoscopy

Gut, 2008
Oesophageal, gastric and colorectal neoplasms made up 24% of worldwide cancer mortality in 2002.1 Early detection of these neoplasms or their precursors may be the only chance to reduce this high mortality. Endoscopy is currently the initial procedure used for early detection of gastrointestinal (GI) cancers worldwide.
A, Larghi, P G, Lecca, G, Costamagna
openaire   +2 more sources

Duodenal haemosiderosis using narrow-band imaging

Digestive and Liver Disease, 2012
A 67-year-old female patient with iron deficiency anaemia ho had been taking ferrous sulphate tablets for seven years as referred to our institution because of indigestion. Esophaogastroduodenoscopy showed tiny, diffuse, brownish spots in her uodenal bulb mucosa (Fig. 1A).
Eun Sun, Kim, Hoon Jai, Chun, Bora, Keum, Chulwhan, Kim   +3 more
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Updates in narrow‐band imaging for colorectal polyps: Narrow‐band imaging generations, detection, diagnosis, and artificial intelligence

Digestive Endoscopy, 2023
Narrow‐band imaging (NBI) is an optical digital enhancement method that allows the observation of vascular and surface structures of colorectal lesions. Its usefulness in the detection and diagnosis of colorectal polyps has been demonstrated in several clinical trials and the diagnostic algorithms have been simplified after the establishment of ...
Akira Teramoto, Seiji Hamada, Banri Ogino, Ichiro Yasuda, Yasushi Sano   +4 more
openaire   +2 more sources

Narrow-Band Chemical-Shift Imaging

Topical Meeting on Industrial Applications of Computed Tomography and NMR Imaging, 1984
Our objective is to use a priori knowledge of the NMR signal and minimal amount of data collection to obtain a chemical-shift image. Our method differs from the standard Fourier transform mapping of chemical shifts (1) in a way that allows us to reduce, often drastically, the number of observations.
Ephraim Feig, Fred Greenleaf
openaire   +1 more source

Narrow Band Imaging in Barrett’s Esophagus

Clinical Gastroenterology and Hepatology, 2005
Barrett's esophagus is the premalignant lesion for esophageal and esophagogastric junction adenocarcinoma. Progression of Barrett's esophagus to dysplasia and cancer can occur, thus requiring endoscopy with random biopsy examinations. Currently, the diagnosis of metaplastic and dysplastic mucosa within the esophagus requires endoscopy with biopsy ...
openaire   +2 more sources

Narrow Band Imaging in Borderline Ovarian Tumor

Journal of Minimally Invasive Gynecology, 2010
Fig. 1. Conventional laparoscopy using white light. Borderline ovarian tumors (BOT) comprise 15% of all epithelial ovarian neoplasms, and the outcome is much better than for women with invasive ovarian cancer [1]. The histologic study of peritoneal implants represents a crucial factor in the clinical management of patients with BOT because it ...
F. Fanfani, V. Gallotta, C. Rossitto, FAGOTTI, Anna, G. Scambia   +4 more
openaire   +3 more sources

Narrow-Band Imaging Bronchoscopy in Tracheobronchial Amyloidosis

Journal of Bronchology & Interventional Pulmonology, 2014
Primary tracheobronchial amyloidosis (TBA) is a rare disease characterized by extracellular focal or diffuse submucosal deposits of amyloid proteins. Various types of endobronchial lesions have been described in TBA when bronchoscopy is performed using white light.
Martha L, Serrano-Fernández, Pablo, Alvarez-Maldonado, Gerardo, Aristi-Urista, Alfredo, Valero-Gómez, Raúl, Cicero-Sabido, Carlos Núñez-Pérez, Redondo   +5 more
openaire   +2 more sources