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Narrow band imaging

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https://www.readbyqxmd.com/read/28728249/-application-of-narrow-band-imaging-endoscopy-in-identifying-of-extent-disease-after-chemotherapy-for-laryngeal-carcinoma
#1
J Hou, X Y Ren, K Zhu, X Y Du, N Li, M J Yang
No abstract text is available yet for this article.
July 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28728184/multi-spectral-imaging-of-circumscribed-choroidal-hemangioma-introduction
#2
Nicola Y Gan, Cheryl Zimmer, Wai-Ching Lam
BACKGROUND AND OBJECTIVE: To illustrate the features of a circumscribed choroidal hemangioma (CCH) using Annidis RHA multi-spectral imaging (MSI) technology (Annidis Corporation, Ottawa, Canada). This novel imaging technique uses non-overlapping, narrow-band LED light sources ranging from 520 nm to 940 nm to create a monochromatic series of en face fundus images and oxy/deoxyhemoglobin contrasted maps of the retina and choroid. PATIENTS AND METHODS: Annidis RHA MSI images were taken of a 67-year-old Chinese male with CCH...
July 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28725959/linked-color-imaging-improves-the-visibility-of-various-featured-colorectal-polyps-in-an-endoscopist-s-visibility-and-color-difference-value
#3
Naohisa Yoshida, Yuji Naito, Ritsu Yasuda, Takaaki Murakami, Ryohei Hirose, Kiyoshi Ogiso, Yutaka Inada, Osamu Dohi, Kazuhiro Kamada, Kazuhiko Uchiyama, Osamu Handa, Hideyuki Konishi, Rafiz Abdul Rani, Mitsuo Kishimoto, Eiichi Konishi, Yoshito Itoh
PURPOSE: Linked color imaging (LCI) by laser endoscopy is a novel narrow band light observation. In this study, we analyzed the efficacy of LCI for improving the various featured colorectal polyp's visibility utilizing a subjective endoscopist's visibility scoring and objective color difference (CD) value. METHODS: We retrospectively reviewed two pictures both with white light (WL) and LCI for 54 consecutive neoplastic polyps 2-20 mm in size. All pictures were evaluated by four endoscopists according to a published polyp visibility score from four (excellent visibility) to one (poor visibility)...
July 19, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28720472/mantle-cell-lymphoma-involving-the-esophagus-evaluated-by-magnifying-endoscopy-with-narrow-band-imaging
#4
Haruka Toyonaga, Masashi Fukushima, Tetsuro Inokuma, Yukihiro Imai
No abstract text is available yet for this article.
July 15, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28713060/a-standardized-imaging-protocol-for-the-endoscopic-prediction-of-dysplasia-within-sessile-serrated-polyps-with-video
#5
David J Tate, Mahesh Jayanna, Halim Awadie, Lobke Desomer, Ralph Lee, Stephen J Heitman, Mayenaaz Sidhu, Kathleen Goodrick, Nicholas G Burgess, Hema Mehajan, Duncan McLeod, Michael J Bourke
BACKGROUND AND AIMS: Dysplasia within sessile serrated polyps (SSPs) is difficult to detect, may be mistaken for an adenoma risking incomplete resection of the background serrated tissue, and is strongly implicated in interval cancer after colonoscopy. The use of endoscopic imaging to detect dysplasia within SSP has not been systematically studied. METHODS: Consecutively detected SSP ≥8 mm in size were evaluated using a standardized imaging protocol at a tertiary endoscopy center over 3 years...
July 13, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28712510/narrow-band-imaging-with-4k-technology-in-the-head-and-neck-preliminary-experience-and-technical-settings
#6
G Tirelli, M Piovesana, A Gatto, F Boscolo Nata
No abstract text is available yet for this article.
July 13, 2017: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/28706424/new-magnifying-endoscopic-classification-for-superficial-esophageal-squamous-cell-carcinoma
#7
Su Jin Kim, Gwang Ha Kim, Moon Won Lee, Hye Kyung Jeon, Dong Hoon Baek, Bong Eun Lee, Geun Am Song
AIM: To assess the accuracy of a new magnifying endoscopy (ME) classification for predicting depth of invasion of superficial esophageal squamous cell carcinoma (SESCC). METHODS: This study included a total of 70 lesions in 69 patients with SESCC who underwent ME with narrow-band imaging (ME-NBI) before resection from August 2010 to July 2016. Accuracy of ME-NBI for predicting depth of invasion of SESCC was analyzed by using a new ME classification proposed by the Japan Esophageal Society (JES), and interobserver agreement was assessed...
June 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28706415/role-of-new-endoscopic-techniques-in-inflammatory-bowel-disease-management-has-the-change-come
#8
EDITORIAL
Loredana Goran, Lucian Negreanu, Ana Maria Negreanu
Despite significant therapeutic progress in recent years, inflammatory bowel disease (IBD), which includes Crohn's disease and ulcerative colitis, remains a challenge regarding its pathogenesis and long-term complications. New concepts have emerged in the management of this disease, such as the "treat-to-target" concept, in which mucosal healing plays a key role in the evolution of IBD, the risk of recurrence and the need for surgery. Endoscopy is essential for the assessment of mucosal inflammation and plays a pivotal role in the analysis of mucosal healing in patients with IBD...
June 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28699598/role-of-toll-like-receptor-10-gene-polymorphism-and-gastric-mucosal-pattern-in-patients-with-chronic-gastritis
#9
Taweesak Tongtawee, Theeraya Bartpho, Wareeporn Wattanawongdon, Chavaboon Dechsukhum, Wilairat Leeanansaksiri, Likit Matrakool, Sukij Panpimanmas
BACKGROUND/AIMS: Helicobacter pylori stimulates the host's toll-like receptors (TLRs). Single-nucleotide polymorphism (SNP) of TLRs is related to the manipulation of regulatory cytokines and also implicated in the varied outcomes of the inflammatory response, including the development of precancerous lesions of gastric mucosa and disease progression. We hypothesized that TLR10 rs10004195 polymorphism is associated with gastric mucosal patterns. MATERIALS AND METHODS: TLR10 rs10004195 polymorphisms were identified in a total of 400 gastritis patients using the TagMan SNP genotyping assay...
July 2017: Turkish Journal of Gastroenterology: the Official Journal of Turkish Society of Gastroenterology
https://www.readbyqxmd.com/read/28698230/chromoendoscopy-versus-narrow-band-imaging-in-uc-a-prospective-randomised-controlled-trial
#10
Raf Bisschops, Talat Bessissow, Joseph A Joseph, Filip Baert, Marc Ferrante, Vera Ballet, Hilde Willekens, Ingrid Demedts, Karel Geboes, Gert De Hertogh, Séverine Vermeire, Paul Rutgeerts, Gert Van Assche
BACKGROUND: Patients with long-standing UC have an increased risk for the development of colonic neoplastic lesions. Chromoendoscopy (CE) has been proven to enhance neoplasia detection while the role of virtual chromoendoscopy (VC) is still to be defined. OBJECTIVE: To compare the performance of CE to VC for the detection of neoplastic lesions in patients with long-standing UC. DESIGN: A multicentre prospective randomised controlled trial...
July 11, 2017: Gut
https://www.readbyqxmd.com/read/28693176/flexible-magnifying-endoscopy-with-narrow-band-imaging-for-the-diagnosis-of-uterine-cervical-tumors-a-cooperative-study-among-gastrointestinal-endoscopists-and-gynecologists-to-explore-a-novel-microvascular-classification-system
#11
Noriko Nishiyama, Kenji Kanenishi, Hirohito Mori, Hideki Kobara, Shintaro Fujihara, Taiga Chiyo, Nobuya Kobayashi, Tae Matsunaga, Maki Ayaki, Tatsuo Yachida, Ayako Fujimori, Makoto Oryu, Chiaki Tenkumo, Megumi Ishibashi, Uiko Hanaoka, Toshiyuki Hata, Yumi Miyai, Kyuichi Kadota, Reiji Haba, Tsutomu Masaki
Narrow band imaging with magnifying endoscopy (NBI-ME), which is useful for the assessment of micro-vessels, has excellent diagnostic potential for early gastrointestinal epithelial neoplasia. Conventional diagnostic tools for uterine cervical epithelial tumors are still unsatisfactory. An accurate diagnostic tool for uterine cervical epithelial tumors is required to preserve the reproductive ability of young women with uterine cervical tumors. Flexible NBI-ME was performed in patients with cervical squamous cell lesions that required further examinations based on their Pap smear results (cytology ≥ low-grade squamous intraepithelial lesion) at Kagawa University Hospital between April 2014 and April 2015...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28691449/evaluation-of-the-intraepithelial-papillary-capillary-loops-in-benign-and-malignant-oral-lesions-by-in-vivo-virtual-chromoendoscopic-magnification-a-preliminary-study
#12
M Contaldo, A Lucchese, E Gentile, C Zulli, M Petruzzi, D Lauritano, M R Amato, P Esposito, G Riegler, R Serpico
This preliminary study aims to establish the Virtual Chromoendoscopic Magnification (VCM) feasibility to visualize and distinguish the Intraepithelial Papillary Capillary Loops (IPCL) patterns of benign oral pathologies from malignant ones. Thirty-one consecutive subjects affected by oral lesions/pathologies underwent white light examination and VCM imaging by the Narrow Band Imaging System (Olympus Medical Systems Corp., Tokyo, Japan). A class system of four IPCL types corresponding to progressive vessel disarray was adopted...
April 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28690771/multicenter-randomised-controlled-trial-comparing-the-high-definition-white-light-endoscopy-and-the-bright-narrow-band-imaging-for-colon-polyps
#13
Rajvinder Singh, Kuan Loong Cheong, Leonardo Zorron Cheng Tao Pu, Dileep Mangira, Doreen Siew Ching Koay, Carmen Kee, Siew Chien Ng, Rungsun Rerknimitr, Satimai Aniwan, Tiing-Leong Ang, Khean-Lee Goh, Shiaw Hooi Ho, James Yun-Wong Lau
AIM: To compare high definition white light endoscopy and bright narrow band imaging for colon polyps' detection rates. METHODS: Patients were randomised to high definition white light endoscopy (HD-WLE) or the bright narrow band imaging (bNBI) during withdrawal of the colonoscope. Polyps identified in either mode were characterised using bNBI with dual focus (bNBI-DF) according to the Sano's classification. The primary outcome was to compare adenoma detection rates (ADRs) between the two arms...
June 16, 2017: World Journal of Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28690450/the-role-of-chromoendoscopy-in-evaluating-colorectal-dysplasia
#14
Anna M Buchner
Chromoendoscopy pertains to image-enhanced endoscopic techniques such as dye-based chromoendoscopy and electronic chromoendoscopy using narrow-band imaging, flexible spectral imaging color enhancement, and i-scan. Dye-based chromoendoscopy has been demonstrated to improve colorectal dysplasia detection in high-risk patients with long-term inflammatory bowel disease, and electronic chromoendoscopy techniques have been shown to improve characterization of diminutive colorectal lesions, allowing for optical diagnosis during a colonoscopy examination...
June 2017: Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28687028/adjunctive-use-of-chromoendoscopy-may-improve-the-diagnostic-performance-of-narrow-band-imaging-for-small-sessile-serrated-adenoma-polyp
#15
Li-Chun Chang, Chia-Hung Tu, Been-Ren Lin, Chia-Tung Shun, Weng-Feng Hsu, Jin-Tung Liang, Hsiu-Po Wang, Ming-Shiang Wu, Han-Mo Chiu
BACKGROUND AND AIMS: Endoscopic diagnosis of sessile serrated adenomas/polyps (SSA/P) is challenging because of their subtle appearance. Narrow-band imaging (NBI) is useful for diagnosis, but its utility with concurrent chromoendoscopy (CE), especially to detect small SSA/P, is unproven. PATIENTS AND METHODS: This prospective study enrolled 367 consecutive patients who underwent screening colonoscopy with the finding of serrated polyps. Patients were divided into derivation and validation cohorts: Diagnostic criteria using different endoscopic modalities were generated by regression analysis in the derivation cohort and were validated in the validation cohort for sensitivity, specificity, and accuracy...
July 7, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28685858/diagnostic-performance-of-routine-esophagogastroduodenoscopy-using-magnifying-endoscope-with-narrow-band-imaging-for-gastric-cancer
#16
Shoichi Yoshimizu, Yorimasa Yamamoto, Yusuke Horiuchi, Masami Omae, Toshiyuki Yoshio, Akiyoshi Ishiyama, Toshiaki Hirasawa, Tomohiro Tsuchida, Junko Fujisaki
OBJECTIVES: In Japan, an increase in the number of routine esophagogastroduodenoscopy procedures is expected because several studies have reported that endoscopy screenings have reduced gastric cancer mortality. Magnifying narrow-band imaging has been reported to be effective for accurate diagnosis of gastric abnormalities such as cancers, adenomas, and intestinal metaplasia. However, the efficacy of this method in routine esophagogastroduodenoscopy has not been clarified. METHODS: We divided 3,763 patients into two groups...
July 7, 2017: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/28675992/a-microbolometer-system-for-radiation-detection-in-the-thz-frequency-range-with-a-resonating-cavity-fabricated-in-the-cmos-technology
#17
Aleksander Sesek, Andrej Zemva, Janez Trontelj
BACKGROUND: The THz sensors using microbolometers as a sensing element are reported as one of the most sensitive room-temperature THz detectors suitable for THz imaging and spectroscopic applications. Microbolometer detectors are usually fabricated using different types of the MEMS technology. The patent for the detection system presented in this paper describes a method for microbolometer fabrication using a standard CMOS technology with advanced micromachining techniques. The measured sensitivity of the sensors fabricated by the patented method is 1000 V/W at an optimal frequency and is determined by the performance of a double-dipole antenna and quarter-wavelength resonant cavity...
July 4, 2017: Recent Patents on Nanotechnology
https://www.readbyqxmd.com/read/28670613/risk-of-perforation-in-balloon-dilation-associated-with-steroid-injection-for-preventing-esophageal-stricture-after-endoscopic-submucosal-dissection
#18
Yoshiki Tsujii, Yoshito Hayashi, Naoki Kawai, Takuya Yamada, Katsumi Yamamoto, Shiro Hayashi, Shunsuke Yoshii, Kengo Nagai, Takuya Inoue, Tsutomu Nishida, Hideki Iijima, Eiji Mita, Atsuo Inoue, Tetsuo Takehara
BACKGROUND AND STUDY AIMS:  Endoscopic local steroid injection (LSI) has been used to prevent esophageal strictures after endoscopic submucosal dissection (ESD) for superficial esophageal neoplasms (SENs). This study aimed to evaluate the safety and efficacy of LSI therapy. PATIENTS AND METHODS:  From May 2007 to September 2014, at four institutions, 40 consecutive patients with SENs were treated with ESD that left a mucosal defect of more than three-quarters of the esophageal circumference...
July 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/28662209/narrow-band-imaging-nbi-for-improving-the-assessment-of-vocal-fold-leukoplakia-and-overcoming-the-umbrella-effect
#19
H Klimza, J Jackowska, M Tokarski, K Piersiala, M Wierzbicka
BACKGROUND: It is crucial to find a balance between functional and oncological outcome when choosing an adequate method for the management of vocal fold leukoplakia. Therefore, a detailed examination is a milestone in the decision-making process. AIM: To examine whether narrow-band imaging (NBI) can be helpful in vocal fold assessment in the case of leukoplakia and how to overcome the "umbrella effect"- understood as the submucosal vascular pattern hidden under the plaque...
2017: PloS One
https://www.readbyqxmd.com/read/28654961/labeled-lines-for-image-blur-and-contrast
#20
Michael J Morgan
It has been suggested that blur and contrast discrimination thresholds are limited by a common stage of contrast energy transduction, and that this explains the characteristic "dipper" functions found for contrast and blur discrimination. To test this conjecture, thresholds for discriminating increments from decrements in sharpness/blur, and similarly for contrast, were measured using the same chessboard stimuli with the Method of Single Stimuli (Experiment 1). Using a generic human contrast sensitivity function (HCSF) to calculate energy, thresholds were significantly lower for blur than for contrast...
June 1, 2017: Journal of Vision
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