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Narrow band imaging

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https://www.readbyqxmd.com/read/28932727/effectiveness-of-cholangioscopy-using-narrow-band-imaging-for-hepatobiliary-malignancies
#1
Ji Woong Jang, Dong Hyo Noh, Kyu-Hyun Paik, Sae Hee Kim, Il-Hyun Paik, Sung Hee Jung
PURPOSE: Recently, cholangioscopy using narrow band imaging (NBI) has been used as a diagnostic modality for better visualization in hepatobiliary malignancies; however, there are few reports on it. Our aim is to evaluate the effectiveness of cholangioscopy using NBI in hepatobiliary malignancies. METHODS: Between January 2007 and December 2016, 152 cholangioscopies using percutaneous approach were conducted in total 123 patients. Among these, 36 patients were suspicious of hepatobiliary malignancies...
September 2017: Annals of Surgical Treatment and Research
https://www.readbyqxmd.com/read/28932570/the-technique-of-endoscopic-airway-tumor-treatment
#2
REVIEW
Simone Scarlata, Lello Fuso, Gabriele Lucantoni, Francesco Varone, Daniele Magnini, Raffaele Antonelli Incalzi, Gianni Galluccio
More than half of primary lung cancers are not resectable at diagnosis and 40% of deaths may be secondary to loco-regional disease. Many of these patients suffer from symptoms related to airways obstruction. Indications for therapeutic endoscopic treatment are palliation of dyspnea and other obstructive symptoms in advanced cancerous lesions and cure of early lung cancer. Bronchoscopic management is also indicated for all those patients suffering from benign or minimally invasive neoplasm who are not suitable for surgery due to their clinical conditions...
August 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28924585/evaluation-of-image-enhanced-endoscopic-technology-using-advanced-diagnostic-endoscopy-for-the-detection-of-early-gastric-cancer-a-pilot-study
#3
Daisuke Yamaguchi, Shinya Kodashima, Mitsuhiro Fujishiro, Satoshi Ono, Keiko Niimi, Satoshi Mochizuki, Yosuke Tsuji, Itsuko Asada-Hirayama, Yoshiki Sakaguchi, Satoki Shichijo, Chihiro Minatsuki, Nobutake Yamamichi, Kazuhiko Koike
BACKGROUND AND STUDY AIMS : Image-enhanced endoscopy (IEE) plays an important role in early detection and detailed examination of early gastric cancer (EGC). The current study aimed to clarify the efficacy of IEE using advanced diagnostic endoscopy for EGC detection without magnification. PATIENTS AND METHODS : We performed endoscopic examinations without magnification in patients referred to our hospital with a diagnosis of upper gastrointestinal tumor detected through routine screening endoscopy...
September 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/28917347/optical-diagnosis-of-early-colorectal-cancer-riding-the-highs%C3%A2-and-lows-of-the-japanese-narrow-band-imaging-expert%C3%A2-team-classification
#4
EDITORIAL
Sarah K McGill, Roy Soetikno, Tonya Kaltenbach
No abstract text is available yet for this article.
October 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28887361/technical-considerations-on-phase-mapping-for-identification-of-atrial-reentrant-activity-in-direct-and-inverse-computed-electrograms
#5
Miguel Rodrigo, Andreu M Climent, Alejandro Liberos, Francisco Fernández-Avilés, Omer Berenfeld, Felipe Atienza, Maria S Guillem
BACKGROUND: Phase mapping has become a broadly used technique to identify atrial reentrant circuits for ablative therapy guidance. This work studies the phase mapping process and how the signal nature and its filtering affect the reentrant pattern characterization in electrogram (EGM), body surface potential mapping, and electrocardiographic imaging signals. METHODS AND RESULTS: EGM, body surface potential mapping, and electrocardiographic imaging phase maps were obtained from 17 simulations of atrial fibrillation, atrial flutter, and focal atrial tachycardia...
September 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28881911/vascular-density-of-superficial-esophageal-squamous-cell-carcinoma-determined-by-direct-observation-of-resected-specimen-using-narrow-band-imaging-with-magnifying-endoscopy
#6
D Kikuchi, T Iizuka, S Hoteya, K Nomura, Y Kuribayashi, T Toba, M Tanaka, S Yamashita, T Furuhata, A Matsui, T Mitani, N Inoshita, M Kaise
Observation of the microvasculature using narrow band imaging (NBI) with magnifying endoscopy is useful for diagnosing superficial squamous cell carcinoma. Increased vascular density is indicative of cancer, but not many studies have reported differences between cancerous and noncancerous areas based on an objective comparison. We observed specimens of endoscopic submucosal dissection (ESD) using NBI magnification, and determined the vascular density of cancerous and noncancerous areas. A total of 25 lesions of esophageal squamous cell carcinoma that were dissected en bloc by ESD between July 2013 and December 2013 were subjected to NBI magnification...
November 1, 2017: Diseases of the Esophagus: Official Journal of the International Society for Diseases of the Esophagus
https://www.readbyqxmd.com/read/28881897/comparative-evaluation-of-new-and-conventional-classifications-of-magnifying-endoscopy-with-narrow-band-imaging-for-invasion-depth-of-superficial-esophageal-squamous-cell-carcinoma
#7
T Fujiyoshi, M Tajika, T Tanaka, M Ishihara, N Mizuno, K Hara, S Hijioka, H Imaoka, Y Yatabe, Y Hirooka, H Goto, K Yamao, Y Niwa
A new classification of magnifying endoscopy with narrow band imaging (ME-NBI) for diagnosing and staging superficial esophageal squamous cell carcinoma (SESCC) was proposed by the Japan Esophageal Society in 2011. This study aimed to compare the new classification with the conventional classifications (Inoue's classification and Arima's classification). This was a prospective analysis of data from a single cancer center involving 151 consecutive patients with 156 SESCCs that were endoscopically or surgically resected...
November 1, 2017: Diseases of the Esophagus: Official Journal of the International Society for Diseases of the Esophagus
https://www.readbyqxmd.com/read/28874963/russell-body-gastritis-with-dutcher-bodies-evaluated-using-magnification-endoscopy
#8
Kenji Yorita, Takehiro Iwasaki, Kunihisa Uchita, Naoto Kuroda, Koji Kojima, Shinichi Iwamura, Yutaka Tsutsumi, Akinobu Ohno, Hiroaki Kataoka
Russell body gastritis (RBG) is an unusual type of chronic gastritis characterized by marked infiltration of Mott cells, which are plasma cells filled with spherical eosinophilic bodies referred to as Russell bodies. It was initially thought that Helicobacter pylori (H. pylori) infection was a major cause of RBG and that the infiltrating Mott cells were polyphenotypic; however, a number of cases of RBG without H. pylori infection or with monoclonal Mott cells have been reported. Thus, diagnostic difficulty exists in distinguishing RBG with monoclonal Mott cells from malignant lymphoma...
August 16, 2017: World Journal of Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28872692/coomassie-staining-provides-routine-sub-femtomole-in-gel-detection-of-intact-proteoforms-expanding-opportunities-for-genuine-top-down-proteomics
#9
Nour Noaman, Prabhodh S Abbineni, Michael Withers, Jens R Coorssen
Modified colloidal Coomassie Brilliant Blue (cCBB) staining utilising a novel destain protocol and near-infrared fluorescence detection (nIRFD) rivals the in-gel protein detection sensitivity (DS) of SYPRO Ruby. However, established DS estimates are likely inaccurate in terms of 2DE-resolved proteoform 'spots' since DS is routinely measured from comparatively diffuse protein 'bands' following wide-well 1DE. Here, cCBB DS for 2DE-based proteomics was more accurately determined using narrow-well 1DE. As precise estimates of protein standard monomer concentrations are essential for accurate quantitation, coupling UV absorbance with gel-based purity assessments is described...
September 5, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28870046/-the-chinese-consensus-for-screening-diagnosis-and-management-of-barrett-s-esophagus-and-early-adenocarcinoma-2017-wanning
#10
(no author information available yet)
Patients with Barrett's esophagus (BE)/columnar lined esophagus (CLE) and adenocarcinoma are increasing, in whom 0.61% BE/CLE would develop to adenocarcinoma. The prognosis of esophageal cancer is related to the tumor stage at diagnosis. To standardize the screening, diagnosis and therapy of BE and adenocarcinoma in China, 31 digestive diseases and digestive endoscopy experts and digestive histologists drafted the consensus on the basis of clinical experience and references. The consensus defined BE as a complication of gastroesophageal reflux disease...
September 1, 2017: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/28862009/-endoscopic-optical-imaging-methods-in-the-diagnostics-of-the-laryngeal-cancer
#11
Petr Lukeš, Eva Lukešová, Michal Zábrodský, Jaroslav Sýba, Vít Kratochvíl, Adam Kešner, Michal Votava, Jan Plzák
Endoscopic optical imaging methods for the detection of mucosal lesions in the ENT area have been developed for better and earlier detection of these changes. They can be divided into horizontal methods group - showing the surface of the mucous membrane (autofluorescence, photodynamic diagnosis, Narrow Band Imaging, magnifying and contact endoscopy) and vertical methods group - visualizing different layers of the mucosa (optical coherence tomography and confocal endomicroscopy). Some of them are routinely used in practice, others are used in experimental mode and their introduction into practice may be a matter of the near future...
2017: Casopís Lékar̆ů C̆eských
https://www.readbyqxmd.com/read/28839893/endoscopic-approach-to-polyp-recognition
#12
Conor Lahiff, James E East
Identification and complete resection of colorectal polyps provide a significant mortality benefit from colorectal cancer. With improvements in colonoscopic techniques and advanced endoscopic imaging techniques, polyp detection has taken on greater complexity since the establishment of bowel cancer screening programmes internationally. All endoscopists operating within symptomatic and screening populations should be aware of endoscopic features associated with advanced neoplasia. Chromoendoscopy and advanced imaging techniques, such as narrow spectrum technologies (narrow band imaging, flexible spectral imaging colour enhancement (FICE) and i-Scan digital contrast (iSCAN)), have specific classification systems to support accurate lesion characterisation...
April 2017: Frontline Gastroenterology
https://www.readbyqxmd.com/read/28816376/acetic-acid-indigo-carmine-mixture-for-evaluating-the-margins-of-sessile-serrated-adenomas-polyps
#13
Shunsuke Yamamoto, Morteza Shafazand
Sessile serrated adenomas/polyps (SSA/Ps) have attracted increasing attention since their risk of developing into cancer was clarified [1]. Difficulty in determining their margins causes incomplete resection [2]. Although narrow-band imaging (NBI) and other advanced imaging systems are reportedly useful in evaluating these polyps [3, 4]. This article is protected by copyright. All rights reserved.
August 17, 2017: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/28815064/endoscopic-diagnosis-and-management-of-early-squamous-cell-carcinoma-of-esophagus
#14
REVIEW
Hon-Chi Yip, Philip Wai-Yan Chiu
In recent years, diagnosis of early squamous cell carcinoma (SCC) of the esophagus has been increasingly emphasized. Utilization of image enhanced technology such as narrow band imaging (NBI) and magnification endoscopy allowed detailed examination of the esophageal mucosa. Different patterns of intrapapillary capillary loops (IPCL) have been proven to accurately diagnose and predict the depth of invasion of the tumors. In addition, the application of endoscopic submucosal dissection (ESD) has enabled safe en bloc resection of esophageal lesions...
July 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28814860/quantum-dots-in-imaging-drug-delivery-and-sensor-applications
#15
REVIEW
Cristian T Matea, Teodora Mocan, Flaviu Tabaran, Teodora Pop, Ofelia Mosteanu, Cosmin Puia, Cornel Iancu, Lucian Mocan
Quantum dots (QDs), also known as nanoscale semiconductor crystals, are nanoparticles with unique optical and electronic properties such as bright and intensive fluorescence. Since most conventional organic label dyes do not offer the near-infrared (>650 nm) emission possibility, QDs, with their tunable optical properties, have gained a lot of interest. They possess characteristics such as good chemical and photo-stability, high quantum yield and size-tunable light emission. Different types of QDs can be excited with the same light wavelength, and their narrow emission bands can be detected simultaneously for multiple assays...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28806820/didactic-training-vs-computer-based-self-learning-in-the-prediction-of-diminutive-colon-polyp-histology-by-trainees-a-randomized-controlled-study
#16
Taimur Khan, Birtukan Cinnor, Neil Gupta, Lindsay Hosford, Ajay Bansal, Mojtaba S Olyaee, Sachin Wani, Amit Rastogi
Background and study aim Experts can accurately predict diminutive polyp histology, but the ideal method to train nonexperts is not known. The aim of the study was to compare accuracy in diminutive polyp histology characterization using narrow-band imaging (NBI) between participants undergoing classroom didactic training vs. computer-based self-learning. Participants and methods Trainees at two institutions were randomized to classroom didactic training or computer-based self-learning. In didactic training, experienced endoscopists reviewed a presentation on NBI patterns for adenomatous and hyperplastic polyps and 40 NBI videos, along with interactive discussion...
August 14, 2017: Endoscopy
https://www.readbyqxmd.com/read/28798920/new-device-to-implement-the-adenoma-detection-rate
#17
REVIEW
Maddalena Zippi, Wandong Hong, Pietro Crispino, Giampiero Traversa
It is well-known that colonoscopy is considered the gold standard for colon cancer prevention. Although performed by experienced endoscopists, the matter remains of polyps missed during this examination. The reasons may include the size, shape and location of the lesions. Many colorectal cancer screening programs have been proposed to increase the adenoma detection rate. The substantial difference between these methods is whether the improvement in vision, particularly the detection of irregularities of the mucosa, is inside the endoscope electronic components (magnification, wide-angle vision, narrow band imaging, flexible spectral imaging colour enhancement, i-Scan) or outside the same, by the use of specific caps (EndoCuff, EndoVision, EndoRings)...
July 16, 2017: World Journal of Clinical Cases
https://www.readbyqxmd.com/read/28795318/a-unified-methodology-based-on-sparse-field-level-sets-and-boosting-algorithms-for-false-positives-reduction-in-lung-nodules-detection
#18
Soudeh Saien, Hamid Abrishami Moghaddam, Mohsen Fathian
PURPOSE: This work aims to develop a unified methodology for the false positives reduction in lung nodules computer-aided detection schemes. METHODS: The 3D region of each detected nodule candidate is first reconstructed using the sparse field method for accurately segmenting the objects. This technique enhances the level set modeling by restricting the computations to a narrow band near the evolving curve. Then, a set of 2D and 3D relevant features are extracted for each segmented candidate...
August 9, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28793005/the-diagnostic-value-of-narrow-band-imaging-for-early-and-invasive-lung-cancer-a-meta-analysis
#19
Juanjuan Zhu, Wei Li, Jihong Zhou, Yuqing Chen, Chenling Zhao, Ting Zhang, Wenjia Peng, Xiaojing Wang
This study aimed to compare the ability of narrow-band imaging to detect early and invasive lung cancer with that of conventional pathological analysis and white-light bronchoscopy. We searched the PubMed, EMBASE, Sinomed, and China National Knowledge Infrastructure databases for relevant studies. Meta-disc software was used to perform data analysis, meta-regression analysis, sensitivity analysis, and heterogeneity testing, and STATA software was used to determine if publication bias was present, as well as to calculate the relative risks for the sensitivity and specificity of narrow-band imaging vs those of white-light bronchoscopy for the detection of early and invasive lung cancer...
July 2017: Clinics
https://www.readbyqxmd.com/read/28782001/effectiveness-of-computer-aided-diagnosis-of-colorectal-lesions-using-novel-software-for-magnifying-narrow-band-imaging-a-pilot-study
#20
Naoto Tamai, Yutaka Saito, Taku Sakamoto, Takeshi Nakajima, Takahisa Matsuda, Kazuki Sumiyama, Hisao Tajiri, Ryosuke Koyama, Shoji Kido
BACKGROUND AND STUDY AIMS:  Magnifying narrow-band imaging (M-NBI) enables detailed observation of microvascular architecture and can be used in endoscopic diagnosis of colorectal lesion. However, in clinical practice, differential diagnosis and estimation of invasion depth of colorectal lesions based on M-NBI findings require experience. Therefore, developing computer-aided diagnosis (CAD) for M-NBI would be beneficial for clinical practice. The aim of this study was to evaluate the effectiveness of software for CAD of colorectal lesions...
August 2017: Endoscopy International Open
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