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https://www.readbyqxmd.com/read/28231400/evaluation-of-the-combined-use-of-narrow-band-imaging-and-high-speed-imaging-to-discriminate-laryngeal-lesions
#1
Veronika Volgger, Axelle Felicio, Jörg Lohscheller, Anna S Englhard, Hanan Al-Muzaini, Christian S Betz, Maria E Schuster
BACKGROUND AND OBJECTIVE: Laryngeal lesions are usually investigated by microlaryngoscopy, biopsy, and histopathology. This study aimed to evaluate the combined use of Narrow Band Imaging (NBI) and High-Speed Imaging (HSI) in the differentiation of glottic lesions in awake patients. STUDY DESIGN: Prospective diagnostic study. MATERIALS AND METHODS: Thirty-six awake patients with 41 glottic lesions were investigated with both NBI and HSI, and the suspected diagnoses were compared to the histopathological results of tissue biopsies taken during subsequent microlaryngoscopies...
February 23, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28224618/the-feasibility-of-nbi-in-patients-with-suspected-upper-airway-lesions-a-multicenter-study
#2
Leif J J Bäck, Jami Rekola, Lassi Raittinen, Elina Halme, Petra Pietarinen, Harri Keski-Säntti, Leena-Maija Aaltonen, Antti A Mäkitie, Antti Raappana, Jukka Tikanto, Aleksi Schrey, Reidar Grenman, Jussi Laranne, Petri Koivunen, Heikki Irjala
OBJECTIVE: Narrow band imaging (NBI) improves diagnosis of laryngopharyngeal cancer, but most reported NBI studies are from experienced centers. Feasibility reports on use at everyday outpatient departments are needed. STUDY DESIGN: Researcher-initiated, prospective, multicenter. METHODS: Participating physicians were instructed in NBI technique during a 4-hour meeting. Patients underwent an examination that included endoscopy with white light (WL) high-definition (HD) TV and NBI filter in the selected time period...
February 22, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28216508/-idiopathic-mesenteric-phlebosclerosis-one-case-report-and-literature-review
#3
Yonghong Jiang, Shan Huang, Kequan Chen, Xueqing Chen
Idiopathic mesenteric phlebosclerosis (IMP) is a rare disease and it is easy to be misdiagnosed, which is characterized by intestinal obstruction symptoms, such as abdominal pain, bloating and vomiting. In this study, a case of IMP was observed and the literatures were reviewed. Computed tomography shows funicular high-density shadow and vascular calcification shadow along the vessels around the bowels. Narrow band imaging (M-NBI) endoscopy revealed the disappeared honeycomb capillary, the disordered microvascular structure and the increased density of blood vessels...
January 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28201841/evaluation-of-narrow-band-imaging-signs-in-eosinophilic-and-lymphocytic-esophagitis
#4
Tamaki Ichiya, Kyosuke Tanaka, Carlos A Rubio, Ulf Hammar, Peter T Schmidt
Background and study aims No specific endoscopic signs for diagnosing eosinophilic esophagitis (EoE) have been described and very few studies have reported endoscopic signs for lymphocytic esophagitis (LyE). This study aimed to assess the utility of narrow-band imaging magnifying endoscopy (NBI-ME) in predicting EoE/LyE diagnosis before histopathological assessment. Patients and methods Adult patients with dysphagia and/or food impaction who underwent esophagogastroduodenoscopy followed by NBI-ME and biopsies were included...
February 15, 2017: Endoscopy
https://www.readbyqxmd.com/read/28192481/a-meta-analysis-of-narrow-band-imaging-for-the-diagnosis-and-therapeutic-outcome-of-non-muscle-invasive-bladder-cancer
#5
YiQuan Xiong, JianDong Li, ShuJuan Ma, Jing Ge, LiZhi Zhou, Dongliang Li, Qing Chen
OBJECTIVES: To assess the additional detection rate (ADR) of within-patient comparisons of Narrow band imaging (NBI) and white light cystoscopy (WLC) for non-muscle invasive bladder cancer (NMIBC) detection and compare the impact of NBI and WLC on bladder cancer recurrence risk. METHODS: We searched relevant studies from PubMed, Embase, Medline, Web of Science and the Cochrane Library database for all articles in English published beforeJuly26th, 2016. Pooled ADR, diagnostic accuracy, relative risk (RR) and their 95% confidence intervals (CIs) were calculated...
2017: PloS One
https://www.readbyqxmd.com/read/28181962/use-of-narrow-band-imaging-in-the-diagnosis-of-hypovascular-endobronchial-sarcoidosis
#6
Rimoun Hakim, Bruce Sabath, Tugba Kaplan, Rex Yung
Narrow band imaging (NBI) has been widely applied for the evaluation of numerous disease conditions that present with increased vascularity of the mucosa, most often malignancies. It is increasingly being used in benign conditions as well. We present the first case in which NBI was used, rather, to detect areas of bronchial hypovascularity due to its ability to increase the visual contrast between normal and hypovascular mucosa. Endobronchial biopsy of these nodules led to the diagnosis of sarcoidosis. Had conventional white light alone been utilized, the diagnosis would likely have been missed because not only were these lesions difficult to visualize under white light but transbronchial lung biopsy and transbronchial needle aspiration were unremarkable...
February 8, 2017: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/28168890/diagnostic-performance-of-narrow-band-imaging-for-laryngeal-cancer
#7
Changling Sun, Xue Han, Xiaoying Li, Yayun Zhang, Xiaodong Du
Objective To evaluate the performance of narrow band imaging (NBI) for the diagnosis of laryngeal cancer and to compare the diagnostic value of NBI with that of white light endoscopy. Data Sources PubMed, Embase, Cochrane Library, and CNKI databases. Review Methods Data analyses were performed with Meta-DiSc. The updated Quality Assessment of Diagnostic Accuracy Studies-2 tool was used to assess study quality and potential bias. Publication bias was assessed with the Deeks's asymmetry test. The protocol used in this article has been published on PROSPERO and is in accordance with the PRISMA checklist...
February 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28135297/acetic-acid-enhanced-narrow-band-imaging-for-the-diagnosis-of-gastric-intestinal-metaplasia
#8
Jie Sha, Pin Wang, Bingliang Zhu, Minghui Zhu, Xueliang Li, Feng Gao
Gastric intestinal metaplasia (GIM) is a precancerous lesion of the stomach. The detection of GIM using conventional white-light endoscopy (WLE) is difficult. In this study, we determined whether acetic acid-enhanced narrow band imaging (AA-NBI) improves the detection of GIM. A consecutive cohort of 132 individuals aged 40 years or older was subjected to upper gastrointestinal endoscopy using WLE, NBI and AA-NBI. The ability of the three methods to diagnose GIM in patients was compared. Histological assessment (per-patient and per-biopsy) was used for the accuracy assessment...
2017: PloS One
https://www.readbyqxmd.com/read/28123467/correlation-between-microvascular-characteristics-and-the-expression-of-mvd-igf-1-and-stat3-in-the-development-of-colonic-polyps-carcinogenesis
#9
Hong Liu, Jing Wu, Xiang-Chun Liu, Nan Wei, Kui-Liang Liu, Yan-Hui Ma, Hong Chang, Quan Zhou
The aim of the present study was to investigate the correlation between vascular characteristics under narrow band imaging (NBI) and the expression of angiogenic factors of colorectal carcinoma and adenoma, and to evaluate the feasibility of NBI in vivo visualizing angiogenesis. Patients with colorectal polyps, which were pathologically confirmed as early carcinoma and adenoma, were recruited and examined by NBI. The vascular pattern was classified into type I (invisible or faintly visible vasculature), type II (clearly visible microvasculature that is regularly arranged in a round, oval honeycomb-like pattern) and type III (clearly visible microvasculature that is irregularly arranged in size and caliber or has irregular winding)...
January 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28114040/automatic-detection-and-classification-of-colorectal-polyps-by-transferring-low-level-cnn-features-from-nonmedical-domain
#10
Ruikai Zhang, Yali Zheng, Tony Wing Chung Mak, Ruoxi Yu, Sunny H Wong, James Y W Lau, Carmen C Y Poon
Colorectal cancer (CRC) is a leading cause of cancer deaths worldwide. Although polypectomy at early stage reduces CRC incidence, 90% of the polyps are small and diminutive, where removal of them poses risks to patients that may outweigh the benefits. Correctly detecting and predicting polyp type during colonoscopy allows endoscopists to resect and discard the tissue without submitting it for histology, saving time, and costs. Nevertheless, human visual observation of early stage polyps varies. Therefore, this paper aims at developing a fully automatic algorithm to detect and classify hyperplastic and adenomatous colorectal polyps...
January 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28086818/narrow-band-imaging-versus-lugol-chromoendoscopy-to-diagnose-squamous-cell-carcinoma-of-the-esophagus-a-systematic-review-and-meta-analysis
#11
Flavio Hiroshi Ananias Morita, Wanderley Marques Bernardo, Edson Ide, Rodrigo Silva Paula Rocha, Julio Cesar Martins Aquino, Mauricio Kazuyoshi Minata, Kendi Yamazaki, Sergio Barbosa Marques, Paulo Sakai, Eduardo Guimarães Hourneaux de Moura
BACKGROUND: In the early stage esophageal cancer, changes in the mucosa are subtle and pass unnoticed in endoscopic examinations using white light. To increase sensitivity, chromoscopy with Lugol's solution has been used. Technological advancements have led to the emergence of virtual methods of endoscopic chromoscopy, including narrow band imaging (NBI). NBI enhances the relief of the mucosa and the underlying vascular pattern, providing greater convenience without the risks inherent to the use of vital dye...
January 13, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28066614/the-role-of-bronchoscopy-in-the-diagnosis-of-early-lung-cancer-a-review
#12
REVIEW
Marco Andolfi, Rossella Potenza, Rosanna Capozzi, Valeria Liparulo, Francesco Puma, Kazuhiro Yasufuku
Lung cancer is the leading cause of cancer-related deaths worldwide with an overall 5-year survival rate of 17% after diagnoses. Indeed many patients tend to have a very poor prognosis, due to being diagnosed at an advanced stage. Conversely patients who are diagnosed at an early stage have a 5-year survival >70%, indicating that early detection of lung cancer is crucial to improve survival. Although flexible bronchoscopy is a relatively non-invasive procedure for patients suspected of having lung cancer, only 29% of carcinoma in situ (CIS) and 69% of microinvasive tumors were detectable using white light bronchoscopy (WLB) alone...
November 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28066600/white-light-autofluorescence-and-narrow-band-imaging-bronchoscopy-for-diagnosing-airway-pre-cancerous-and-early-cancer-lesions-a-systematic-review-and-meta-analysis
#13
Jianrong Zhang, Jieyu Wu, Yujing Yang, Hua Liao, Zhiheng Xu, Lindsey Tristine Hamblin, Long Jiang, Lieven Depypere, Keng Leong Ang, Jiaxi He, Ziyan Liang, Jun Huang, Jingpei Li, Qihua He, Wenhua Liang, Jianxing He
BACKGROUND: We aimed to summarize the diagnostic accuracy of white light bronchoscopy (WLB) and advanced techniques for airway pre-cancerous lesions and early cancer, such as autofluorescence bronchoscopy (AFB), AFB combined with WLB (AFB + WLB) and narrow-band imaging (NBI) bronchoscopy. METHODS: We searched for eligible studies in seven electronic databases from their date of inception to Mar 20, 2015. In eligible studies, detected lesions should be confirmed by histopathology...
November 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28059477/low-and-high-molecular-mass-dithienopyrrole-naphthalene-bisimide-donor-acceptor-compounds-synthesis-electrochemical-and-spectroelectrochemical-behaviour
#14
Renata Rybakiewicz, Eric D Glowacki, Lukasz Skorka, Sandra Pluczyk, Pawel Zassowski, Dogukan Hazar Apaydin, Mieczyslaw Lapkowski, Malgorzata Zagorska, Adam Pron
Two low molecular weight electroactive donor-acceptor-donor (DAD)-type molecules are reported, namely naphthalene bisimide (NBI) symmetrically core-functionalized with dithienopyrrole (NBI-(DTP)2 ) and an asymmetric core-functionalized naphthalene bisimide with dithienopyrrole (DTP) substituent on one side and 2-ethylhexylamine on the other side (NBI-DTP-NHEtHex). Both compounds are characterized by low optical bandgaps (1.52 and 1.65 eV, respectively). NBI-(DTP)2 undergoes oxidative electropolymerization giving the electroactive polymer of ambipolar character...
February 24, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28040958/development-of-a-core-snubber-for-the-neutral-beam-injector-on-east
#15
Cai-Chao Jiang, Chun-Dong Hu, Ya-Hong Xie, Sheng Liu, Shi-Yong Chen, Zhi-Min Liu, Yong-Jian Xu, Li-Zhen Liang, Yuan-Lai Xie
A 4-MW ion source was developed for the neutral beam injector (NBI) on Experimental Advanced Superconducting Tokamak (EAST). Breakdown nevertheless can happen during ion source conditioning and routine operations and is deleterious to the high-power ion source. To protect this ion source, a core snubber was designed to absorb the breakdown energy of the EAST-NBI ion source. A prototype core snubber was developed and tested using the ion-source test bed. The results show that with a core snubber, short-circuit currents at different high-power voltages were about one-tenth of the current without the snubber...
December 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/28028382/fice-vs-narrow-band-imaging-for-in-vivo-histologic-diagnosis-of-polyps
#16
Cevher Akarsu, Nuri Alper Sahbaz, Ahmet Cem Dural, Mustafa Gokhan Unsal, Osman Kones, Ali Kocatas, Ilkay Halicioglu, Halil Alis
BACKGROUND AND OBJECTIVES: Gastrointestinal cancers are the most frequently occurring cancers worldwide. Diagnosis and removal of polyps during screening endoscopy decreases the prevalence of colon cancer and cancer-related mortality, and it is considered to be the gold standard in gastrointestinal system cancer prevention. Technological innovations in endoscopy have led to revolutionary developments in many areas. Flexible spectral imaging color enhancement (FICE) and narrow-band imaging (NBI) are forms of digital chromoendoscopy and enhance the endoscopic images without the need for a dye...
October 2016: JSLS: Journal of the Society of Laparoendoscopic Surgeons
https://www.readbyqxmd.com/read/28002507/narrow-band-imaging-endoscopy-for-detection-of-precancerous-lesions-of-upper-gastrointestinal-tract
#17
Dan Nicolae Florescu, Elena Tatiana Ivan, Adriana Mihaela Ciocâlteu, Ioana Andreea Gheonea, Diana Rodica Tudoraşcu, Tudorel Ciurea, Dan IonuŢ Gheonea
Gastric cancer (GC) is an important health problem despite the advances in surgery and chemotherapy and although the incidence is decreasing, GC is still considered the second most common cause of deceases produced by cancer. Survival rates in gastric cancer are low, mainly because most patients are often diagnosed in late stages. The current interest in the diagnostic of GC is the detection of early gastric cancer. Advances in high-resolution endoscopic techniques such as narrow band imaging (NBI) allow the detection of early precancerous lesions like polyps or metaplastic mucosa...
2016: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/27995189/evaluation-of-microvascular-findings-of-deeply-invasive-colorectal-cancer-by-endocytoscopy-with-narrow-band-imaging
#18
Hiroki Nakamura, Shin-Ei Kudo, Masashi Misawa, Shinichi Kataoka, Kunihiko Wakamura, Takemasa Hayashi, Toyoki Kudo, Yuichi Mori, Kenichi Takeda, Katsuro Ichimasa, Hideyuki Miyachi, Atushi Katagiri, Fumio Ishida, Haruhiro Inoue
: Background and study aims: Magnifying narrow-band imaging (NBI) is useful for examination of colorectal lesions, and endocytoscopy (EC) allows diagnostic evaluation of structural atypia, nuclear atypia, and vascular structures of colorectal tumors. The aim of this study was to examine surface microvessels in deep invasive colorectal cancer using EC with a new NBI video processor system. Patients and methods: We retrospectively assessed 132 colorectal neoplastic lesions: 81 adenomas, 18 intramucosal cancers, 4 submucosal slightly invasive cancers, and 29 submucosal deep invasive cancers...
December 2016: Endoscopy International Open
https://www.readbyqxmd.com/read/27977882/helicobacter-pylori-negative-early-gastric-adenocarcinoma-with-complete-intestinal-mucus-phenotype-mimicking-verrucous-gastritis
#19
Shunsuke Yoshii, Yoshito Hayashi, Tetsuo Takehara
Helicobacter pylori (H. pylori)-negative gastric cancer was reported to be very rare but may increase owing to the reduction of H. pylori infection (1-3) . Here, we report a case of differentiated-type adenocarcinoma arising from H. pylori-negative gastric pyloric mucosa, which could be diagnosed using magnifying endoscopy with narrow band imaging (NBI-ME). This article is protected by copyright. All rights reserved.
December 15, 2016: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/27915451/interobserver-agreement-in-detection-of-white-globe-appearance-and-the-ability-of-educational-lectures-to-improve-the-diagnosis-of-gastric-lesions
#20
Hitoshi Omura, Naohiro Yoshida, Tomoyuki Hayashi, Kazuhiro Miwa, Hajime Takatori, Hirokazu Tsuji, Katsuhisa Inamura, Yukihiro Shirota, Hiroyuki Aoyagi, Takaharu Masunaga, Kazuyoshi Katayanagi, Hiroshi Kurumaya, Shuichi Kaneko, Hisashi Doyama
BACKGROUND: White globe appearance (WGA) refers to a small white lesion of globular shape underneath cancerous gastric epithelium that can be clearly visualized by magnifying endoscopy with narrowband imaging (M-NBI). WGA has been reported to be a novel endoscopic marker that is highly specific in differentiating early gastric cancer (GC) from low-grade adenoma, and has a significantly higher prevalence in early GCs than in noncancerous lesions. However, interobserver agreement in detecting WGA and whether training intervention can improve diagnostic accuracy are unknown...
December 3, 2016: Gastric Cancer
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