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Narrow band imaging

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https://www.readbyqxmd.com/read/28432477/usefulness-of-non-magnifying-narrow-band-imaging-in-evis-exera-iii-video-systems-and-high-definition-endoscopes-to-diagnose-dysplasia-in-barrett-s-esophagus-using-the-barrett-international-nbi-group-bing-classification
#1
Oscar Nogales, Arancha Caballero-Marcos, Ana Clemente-Sánchez, Javier García-Lledó, Leticia Pérez-Carazo, Beatriz Merino, Carlos Carbonell, María López-Ibáñez, Cecilia González-Asanza
BACKGROUND: Narrow band imaging (NBI) allows identification of abnormal areas of Barrett's esophagus (BE) and could facilitate targeted biopsies. AIMS: We evaluated the diagnostic accuracy for dysplasia prediction using non-magnifying NBI in Evis Exera III processors and high-definition endoscopes using the Barrett International NBI Group (BING) classification, as well as inter/intraobserver agreement for dysplasia prediction and mucosal/vascular patterns. METHODS: Eight observers (4 staff endoscopists and 4 trainee endoscopists) evaluated 100 images selected from an anonymized bank of 470 photographs using the BING classification...
April 21, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28430526/the-bow-tie-shape-of-the-anterior-cruciate-ligament-as-visualized-by-high-resolution-magnetic-resonance-imaging
#2
Kang Min Sohn, Min Jin Lee, Helen Hong, Young Cheol Yoon, Chan Deok Park, Joon Ho Wang
BACKGROUND: Although numerous studies have examined the anatomic characteristics of the anterior cruciate ligament (ACL), its actual shape remains unclear. PURPOSE: To determine the average shape of the ACL by analyzing its cross section through the use of high-resolution magnetic resonance imaging (MRI) data. STUDY DESIGN: Descriptive laboratory study. METHODS: The study included 96 MRIs, conducted using a 3.0-T magnet, to analyze the shape of the ACL...
April 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28419557/usefulness-of-the-valsalva-maneuver-without-a-mouthpiece-to-observe-the-hypopharynx-using-transoral-endoscopy
#3
Yasushi Yamasaki, Ryu Ishihara, Kenta Hamada
Transoral endoscopy with narrow band imaging is useful for early detection of pharyngeal cancer.(1) The postcricoid area and the posterior wall of the hypopharynx, however, are still difficult to observe because they're anatomically closed.(2) Although the Valsalva maneuver with transnasal endoscopy has been reportedly useful for opening the closed area,(3) it is difficult with transoral endoscopy. This article is protected by copyright. All rights reserved.
April 17, 2017: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/28409959/systematic-fuel-cavity-asymmetries-in-directly-driven-inertial-confinement-fusion-implosions
#4
R C Shah, B M Haines, F J Wysocki, J F Benage, J A Fooks, V Glebov, P Hakel, M Hoppe, I V Igumenshchev, G Kagan, R C Mancini, F J Marshall, D T Michel, T J Murphy, M E Schoff, K Silverstein, C Stoeckl, B Yaakobi
We present narrow-band self-emission x-ray images from a titanium tracer layer placed at the fuel-shell interface in 60-laser-beam implosion experiments at the OMEGA facility. The images are acquired during deceleration with inferred convergences of ∼9-14. Novel here is that a systematically observed asymmetry of the emission is linked, using full sphere 3D implosion modeling, to performance-limiting low mode asymmetry of the drive.
March 31, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28395383/extending-magnifying-nbi-diagnosis-of-intestinal-metaplasia-in-the-stomach-the-white-opaque-substance-marker
#5
Takao Kanemitsu, Kenshi Yao, Takashi Nagahama, Kentaro Imamura, Shoko Fujiwara, Toshiharu Ueki, Kenta Chuman, Hiroshi Tanabe, Ota Atsuko, Akinori Iwashita, Toshio Shimokawa, Kunihisa Uchita, Takashi Kanesaka
Light-blue crests and white opaque substance are two features of intestinal metaplasia in the stomach that can be observed with magnifying narrow-band imaging. In a prospective pilot trial, Kanemitsu et al. show that combining these two findings significantly improves the sensitivity for detecting intestinal metaplasia. Background and aims Intestinal metaplasia (IM) of the stomach is associated with an increased risk of differentiated gastric cancer. While it is important to diagnose IM endoscopically, it can be difficult to observe by white-light endoscopy...
April 10, 2017: Endoscopy
https://www.readbyqxmd.com/read/28386209/prediction-of-the-invasion-depth-of-superficial-squamous-cell-carcinoma-based-on-microvessel-morphology-magnifying-endoscopic-classification-of-the-japan-esophageal-society
#6
Tsuneo Oyama, Haruhiro Inoue, Miwako Arima, Kumiko Momma, Tai Omori, Ryu Ishihara, Dai Hirasawa, Manabu Takeuchi, Akihisa Tomori, Kenichi Goda
Predicting invasion depth of superficial esophageal squamous cell carcinoma is crucial in determining the precise indication for endoscopic resection because the rate of lymph node metastasis increases in proportion to the invasion depth of the carcinoma. Previous studies have shown a close relationship between microvascular patterns observed by Narrow Band Imaging magnifying endoscopy and invasion depth of the superficial carcinoma. Thus, the Japan Esophageal Society (JES) developed a simplified magnifying endoscopic classification for estimating invasion depth of superficial esophageal squamous cell carcinomas...
2017: Esophagus: Official Journal of the Japan Esophageal Society
https://www.readbyqxmd.com/read/28382328/clinical-usefulness-of-magnifying-endoscopy-for-non-ampullary-duodenal-tumors
#7
Takeshi Mizumoto, Yoji Sanomura, Shinji Tanaka, Kazutoshi Kuroki, Mio Kurihara, Yoshikazu Yoshifuku, Shiro Oka, Koji Arihiro, Fumio Shimamoto, Kazuaki Chayama
Study aims This study aimed to investigate the clinical usefulness of magnifying endoscopy (ME) for non-ampullary duodenal tumors. Patients and methods We enrolled 103 consecutive patients with non-ampullary duodenal tumors that were observed by ME with narrow-band imaging (ME-NBI) and had pit pattern analysis before endoscopic resection at Hiroshima University Hospital before December 2014. ME-NBI images were classified as Type B or Type C according to the Hiroshima classification, and pit patterns were classified as regular or irregular...
April 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/28378694/the-role-of-narrow-band-imaging-in-colorectal-polyp-detection
#8
Irina Ioana Vișovan, Marcel Tanțău, Oliviu Pascu, Lidia Ciobanu, Alina Tanțău
Colonoscopic detection and removal of polyps represent the most important prevention method for colorectal cancer. We aimed to investigate the diagnostic yield of narrow band imaging (NBI) colonoscopy for polyp detection compared with standard colonoscopy. In this prospective study, 505 patients that underwent total colonoscopy were randomized into two groups: 226 patients in NBI group and 279 in non-NBI group (standard colonoscopy). The primary endpoints were polyp detection rate (PDR) and adenoma detection rate (ADR) in both groups...
April 5, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28370672/narrow-band-imaging-in-transoral-laser-surgery-for-early-glottic-cancer-in-relation-to-clinical-outcome
#9
Boudewijn E C Plaat, Manon A Zwakenberg, Joost G van Zwol, Jan Wedman, Bernard F A M van der Laan, György B Halmos, Frederik G Dikkers
BACKGROUND: The purpose of this study was to validate the prognostic value of adding narrow-band imaging (NBI) during transoral laser surgery (TLS) for early glottic cancer. METHODS: In 84 patients, 93 transoral laser resections were performed for carcinoma in situ (Tcis), T1, or T2 glottic cancer. TLS was preceded by intraoperative evaluation using traditional white-light imaging (WLI) in 51 cases. In 42 cases, NBI was used in addition to WLI. Local recurrence rate and recurrence-free survival were retrospectively compared between both groups...
March 29, 2017: Head & Neck
https://www.readbyqxmd.com/read/28367837/tuning-the-electrical-property-of-a-single-layer-graphene-nanoribbon-by-adsorption-of-planar-molecular-nanoparticles
#10
Reetu Raj Pandey, Minoru Fukumori, Amin TermehYousefi, Masanori Eguchi, Daisuke Tanaka, Takuji Ogawa, Hirofumi Tanaka
In this study, a simple and fast approach of band gap formation in a single layer graphene nanoribbon (sGNR) is demonstrated by using hexaazatriphenylenehexacarbonitrile (HAT-CN6) as an adsorbate molecule. sGNRs were successfully synthesized through the unzipping of double-walled carbon nanotubes followed by casting HAT-CN6 in acetone solution to alter the electronic properties of the sGNRs. Then, the electrical property of a sGNR was measured using a field effect transistor structure and also by point-contact current imaging atomic force microscopy...
April 28, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28367494/comparison-of-the-diagnostic-ability-of-blue-laser-imaging-magnification-versus-pit-pattern-analysis-for-colorectal-polyps
#11
Arihiro Nakano, Yoshiki Hirooka, Takeshi Yamamura, Osamu Watanabe, Masanao Nakamura, Kohei Funasaka, Eizaburo Ohno, Hiroki Kawashima, Ryoji Miyahara, Hidemi Goto
Background and study aims There have been few evaluations of the diagnostic ability of new narrow band light observation blue laser imaging (BLI). The present prospective study compared the diagnostic ability of BLI magnification and pit pattern analysis for colorectal polyps. Patients and methods We collected lesions prospectively, and the analysis of images was made by two endoscopists, retrospectively. A total of 799 colorectal polyps were examined by BLI magnification and pit pattern analysis at Nagoya University Hospital...
April 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/28367361/transoral-laser-microsurgery-in-early-glottic-lesions
#12
REVIEW
E V Sjögren
PURPOSE OF REVIEW: To give an overview of the evolvement of transoral laser microsurgery (TLM) in the treatment of early glottic carcinoma and highlight the contribution of recent literature. RECENT FINDINGS: The indications and limits of TLM have been well specified. Effects on swallowing have been well documented. Introduction of narrow-band imaging (NBI) and diffusion-weighted magnetic resonance has been shown of additional value for outcome. The first reports on transoral robotic surgery show that it may be of added value in the future...
2017: Current Otorhinolaryngology Reports
https://www.readbyqxmd.com/read/28366441/narrow-band-imaging-versus-white-light-versus-mapping-biopsy-for-gastric-intestinal-metaplasia-a-prospective-blinded-trial
#13
James Buxbaum, David Hormozdi, Mário Dinis-Ribeiro, Christianne Lane, Diogo Dias da Silva, Ara Sahakian, Preeth Jayaram, Pedro Pimentel Nunes, Daniel Shue, Michael Pepper, Daniel Cho, Loren Laine
BACKGROUND & AIMS: Gastric intestinal metaplasia (GIM) is a gastric cancer precursor. Narrow-band imaging (NBI) may improve detection of GIM. We compared detection of GIM with high-definition white-light (HD-WL) endoscopy, NBI, and mapping biopsies in a population with increased gastric cancer risk. METHODS: Patients undergoing upper endoscopy had HD-WL examination by one endoscopist, followed by NBI examination by a second endoscopist blinded to HD-WL findings...
March 30, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28361838/comparison-of-diagnostic-efficacy-between-afi-nbi-and-afi-combined-with-nbi-for-colonic-cancers-a-meta-analysis
#14
Xiuhe Lv, Chunhui Wang, Yan Xie
BACKGROUND/AIMS: Advanced endoscopic imaging technologies have been used for the early detection and differentiation of colonic cancers recently. We aim to evaluate the diagnostic efficacy of autofluorescence imaging (AFI), narrow-band imaging (NBI), and AFI combined with NBI for colonic cancers. MATERIALS AND METHODS: We searched Medline/PubMed, Embase, Web of Science, and Cochrane Library databases for relevant articles. A random-effects model was used to assess diagnostic efficacy...
March 2017: Saudi Journal of Gastroenterology: Official Journal of the Saudi Gastroenterology Association
https://www.readbyqxmd.com/read/28361325/intravascular-endoscopy-improvement-through-narrow-band-imaging
#15
Axel Boese, Akhil Karthasseril Sivankutty, Alfredo Illanes, Michael Friebe
PURPOSE: Recent advances in endoscopy have led to new technologies with significant optical imaging improvements. Since its development a few years ago, narrow-band imaging (NBI) has already been proved useful in detecting malignant lesions and carcinoma in clinical settings of urology, gastroenterology and ENT. The potential of this technology for imaging applications of the arterial vessel wall has not been properly analysed yet, but with the observed benefits could prove valuable for this clinical use as well...
March 30, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28319605/evaluation-of-esophagitis-using-endoscopic-narrow-band-imaging
#16
Amber McClain, Catalina Jaramillo, Raza A Patel, Jacob Robson
No abstract text is available yet for this article.
March 17, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28317452/recent-advances-in-diagnostic-testing-for-gastroesophageal-reflux-disease
#17
Rishi D Naik, Michael F Vaezi
Gastroesophageal reflux disease (GERD) has a large economic burden with important complications that include esophagitis, Barrett's esophagus, and adenocarcinoma. Despite endoscopy, validated patient questionnaires, and traditional ambulatory pH monitoring, the diagnosis of GERD continues to be challenging. Areas covered: This review will explore the difficulties in diagnosing GERD with a focus on new developments, ranging from basic fundamental changes (histology and immunohistochemistry) to direct patient care (narrow-band imaging, impedance, and response to anti-reflux surgery)...
March 27, 2017: Expert Review of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28295627/second-local-recurrence-with-advanced-rectal-cancer-after-salvage-emr-of-local-recurrence-following-initial-cold-polypectomy
#18
Motohiko Kato, Junichi Shiraishi, Toshio Uraoka
A 60-year-old woman underwent colonoscopy for a positive fecal immunochemical test. A 5 mm sessile polyp (Paris type 0-Isp) was found in the lower rectum (Figure 1a). This polyp was diagnosed as a low-grade adenoma based on findings of magnification colonoscopy with narrow band imaging (Figure 1b) and then was resected in a single piece with cold snare polypectomy. This article is protected by copyright. All rights reserved.
March 14, 2017: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/28293023/advances-in-image-enhancement-in-colonoscopy-for-detection-of-adenomas
#19
REVIEW
Takahisa Matsuda, Akiko Ono, Masau Sekiguchi, Takahiro Fujii, Yutaka Saito
High-quality colonoscopy is mandatory to prevent adenoma recurrence and colorectal cancer. In the past few years, technical advances have been developed with the purpose of improving adenoma detection rate (ADR), one of the most important validated colonoscopy quality benchmarks. Several techniques or devices are used to optimize visualization: observation techniques; add-on devices; auxiliary imaging devices; colonoscopes with increased field of view; and colonoscopes with an integrated inflatable reusable balloon...
March 15, 2017: Nature Reviews. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28288013/new-developments-in-surgery-for-endometriosis-and-pelvic-pain
#20
Thanh Ha Luu, M Jean Uy-Kroh
Endometriosis is a common disease affecting reproductive age women. Pain is one of the most common symptoms associated with endometriosis. When medical therapy has failed or in known deeply infiltrating endometriosis, surgical management is warranted. Laparoscopy is the gold standard for diagnosis and treatment of endometriosis. Recent developments in surgery have shown the feasibility of robotic surgery for endometriosis, although these methods have not been shown to be superior to conventional laparoscopy...
June 2017: Clinical Obstetrics and Gynecology
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