keyword
MENU ▼
Read by QxMD icon Read
search

nBI

keyword
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
#1
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
#2
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
#3
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
#4
Renata Rybakiewicz, Eric Daniel Glowacki, Lukasz Skorka, Sandra Pluczyk, Pawel Zassowski, Dogukan Apaydin, Mieczyslaw Lapkowski, Malgorzata Zagorska, Adam Pron
Two low molecular weight electroactive donor-acceptor- donor (DAD) type molecules are reported, namely naphthalene bisimide symmetrically core-functionalized with dithienopyrrole (NBI-(DTP)2) and an asymmetric core-functionalized naphthalene bisimide with dithienopyrrole substituent on one side and 2-ethylhexylamine on the other side (NBI-DTP-NHEtHex). Both compounds are characterized by low optical band gaps (1.52 eV and 1.65 eV, respectively). NBI-(DTP)2 undergoes oxidative electropolymerization giving the electroactive polymer of ambipolar character...
January 6, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28040958/development-of-a-core-snubber-for-the-neutral-beam-injector-on-east
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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
https://www.readbyqxmd.com/read/27910618/faraday-cup-type-lost-fast-ion-detector-on-heliotron-j
#11
S Yamamoto, K Ogawa, M Isobe, D S Darrow, S Kobayashi, K Nagasaki, H Okada, T Minami, S Kado, S Ohshima, G M Weir, Y Nakamura, S Konoshima, N Kemmochi, Y Ohtani, T Mizuuchi
A Faraday-cup type lost-fast ion probe (FLIP) has been designed and installed in Heliotron J for the purpose of the studies of interaction between fast ions and MHD instabilities. The FLIP can measure the co-going fast ions whose energy is in the range of 1.7-42.5 keV (proton) and pitch angle of 90(∘)-140(∘), especially for fast ions having the injection energy of neutral beam injection (NBI). The FLIP successfully measured the re-entering passing ions and trapped lost-fast ions caused by fast-ion-driven energetic particle modes in NBI heated plasmas...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910523/first-measurement-of-the-edge-charge-exchange-recombination-spectroscopy-on-east-tokamak
#12
Y Y Li, X H Yin, J Fu, D Jiang, S Y Feng, B Lyu, Y J Shi, Y Yi, X J Zhou, C D Hu, M Y Ye, B N Wan
An edge toroidal charge exchange recombination spectroscopy (eCXRS) diagnostic, based on a heating neutral beam injection (NBI), has been deployed recently on the Experimental Advanced Superconducting Tokamak (EAST). The eCXRS, which aims to measure the plasma ion temperature and toroidal rotation velocity in the edge region simultaneously, is a complement to the exiting core CXRS (cCXRS). Two rows with 32 fiber channels each cover a radial range from ∼2.15 m to ∼2.32 m with a high spatial resolution of ∼5-7 mm...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910466/first-results-from-solid-state-neutral-particle-analyzer-on-experimental-advanced-superconducting-tokamak
#13
J Z Zhang, Y B Zhu, J L Zhao, B N Wan, J G Li, W W Heidbrink
Full function integrated, compact solid state neutral particle analyzers (ssNPA) based on absolute extreme ultraviolet silicon photodiode have been successfully implemented on the experimental advanced superconducting tokamak to measure energetic particle. The ssNPA system has been operated in advanced current mode with fast temporal and spatial resolution capabilities, with both active and passive charge exchange measurements. It is found that the ssNPA flux signals are increased substantially with neutral beam injection (NBI)...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910330/scintillator-based-fast-ion-loss-measurements-in-the-east
#14
J F Chang, M Isobe, K Ogawa, J Huang, C R Wu, Z Xu, Z Jin, S Y Lin, L Q Hu
A new scintillator-based fast ion loss detector (FILD) has been installed on Experimental Advanced Superconducting Tokamak (EAST) to investigate the fast ion loss behavior in high performance plasma with neutral beam injection (NBI) and ion cyclotron resonance heating (ICRH). A two dimensional 40 mm × 40 mm scintillator-coated (ZnS:Ag) stainless plate is mounted in the front of the detector, capturing the escaping fast ions. Photons from the scintillator plate are imaged with a Phantom V2010 CCD camera. The lost fast ions can be measured with the pitch angle from 60° to 120° and the gyroradius from 10 mm to 180 mm...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27904863/recent-updates-in-the-endoscopic-diagnosis-of-barrett-s-oesophagus
#15
REVIEW
Neel Sharma, Khek Yu Ho
BACKGROUND: Barrett's oesophagus (BO) is a premalignant condition associated with the development of oesophageal adenocarcinoma (OAC). Despite the low risk of progression per annum, OAC is associated with significant morbidity and mortality, with an estimated 5-year survival of 10%. Furthermore, the incidence of OAC continues to rise globally. Therefore, it is imperative to detect the premalignant phase of BO and follow up such patients accordingly. SUMMARY: The mainstay diagnosis of BO is endoscopy and biopsy sampling...
October 2016: Gastrointestinal Tumors
https://www.readbyqxmd.com/read/27895406/simplified-criteria-for-diagnosing-superficial-esophageal-squamous-neoplasms-using-narrow-band-imaging-magnifying-endoscopy
#16
Akira Dobashi, Kenichi Goda, Noboru Yoshimura, Tomohiko R Ohya, Masayuki Kato, Kazuki Sumiyama, Masato Matsushima, Shinichi Hirooka, Masahiro Ikegami, Hisao Tajiri
AIM: To simplify the diagnostic criteria for superficial esophageal squamous cell carcinoma (SESCC) on Narrow Band Imaging combined with magnifying endoscopy (NBI-ME). METHODS: This study was based on the post-hoc analysis of a randomized controlled trial. We performed NBI-ME for 147 patients with present or a history of squamous cell carcinoma in the head and neck, or esophagus between January 2009 and June 2011. Two expert endoscopists detected 89 lesions that were suspicious for SESCC lesions, which had been prospectively evaluated for the following 6 NBI-ME findings in real time: "intervascular background coloration"; "proliferation of intrapapillary capillary loops (IPCL)"; and "dilation", "tortuosity", "change in caliber", and "various shapes (VS)" of IPCLs (i...
November 7, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27894979/comparison-of-white-light-photodynamic-diagnosis-and-narrow-band-imaging-in-detection-of-carcinoma-in-situ-or-flat-dysplasia-at-transurethral-resection-of-the-bladder-the-dablaca-8-study
#17
Ditte Drejer, Sami Béji, Recep Oezeke, Anna Munk Nielsen, Søren Høyer, Truls Erik Bjerklund Johansen, Gitte W Lam, Jørgen B Jensen
OBJECTIVE: To compare findings in NBI to findings in WL and PDD in a high-risk patient population. MATERIALS AND METHODS: A total of 171 patients were included in the study from 4 different urology departments in Denmark and Norway. Patients were scheduled for a PDD-guided transurethral tumor resection or cystoscopy-guided biopsy in accordance with Danish guidelines, on the suspicion of primary or concomitant CIS. All patients were examined with WL cystoscopy followed by both NBI and PDD before biopsy...
November 25, 2016: Urology
https://www.readbyqxmd.com/read/27878600/narrow-band-imaging-for-early-diagnosis-of-epithelial-dysplasia-and-microinvasive-tumors-in-the-upper-aerodigestive-tract
#18
C Arens, C Betz, M Kraft, S Voigt-Zimmermann
The various stages of tumor growth are characterized by typical epithelial, vascular, and secondary connective tissue changes. Narrow Band Imaging (NBI) endoscopy is a minimally invasive imaging technique that presents vascular structures in particular at a higher contrast than white light endoscopy alone. In combination with high-resolution image recording and reproduction (high-definition television, HDTV; ultra-high definition, 4K), progress has been made in otolaryngological differential diagnostics, both pre- and intraoperatively...
November 23, 2016: HNO
https://www.readbyqxmd.com/read/27853747/can-magnifying-endoscopy-with-narrow-band-imaging-discriminate-between-carcinomas-and-low-grade-adenomas-in-gastric-superficial-elevated-lesions
#19
Takashi Nonaka, Masahiko Inamori, Yasushi Honda, Kenji Kanoshima, Yumi Inoh, Mizue Matsuura, Shiori Uchiyama, Eiji Sakai, Takuma Higurashi, Hidenori Ohkubo, Hiroshi Iida, Hiroki Endo, Koji Fujita, Akihiko Kusakabe, Kazuhiro Atsukawa, Hisao Takahashi, Yoko Tateishi, Shin Maeda, Kenichi Ohashi, Atsushi Nakajima
: Background and study aims: The aim of this study was to investigate the capability of magnifying endoscopy with narrow-band imaging (ME-NBI) to discriminate between early carcinomas (EC) and low grade adenomas (LGA) in gastric superficial elevated epithelial neoplasias. Patients and methods: We investigated 100 consecutive cases of gastric superficial elevated epithelial neoplasias that were removed using endoscopic submucosal dissection. The pathological diagnostic criteria were based on the revised Vienna classification; category 4 (mucosal high grade neoplasia) and category 5 (submucosal invasion by carcinoma) lesions were diagnosed as EC, whereas category 3 (mucosal low grade neoplasia) lesions were diagnosed as LGA...
November 2016: Endoscopy International Open
https://www.readbyqxmd.com/read/27853744/clinical-usefulness-of-narrow-band-imaging-magnifying-colonoscopy-for-assessing-ulcerative-colitis-associated-cancer-dysplasia
#20
Soki Nishiyama, Shiro Oka, Shinji Tanaka, Shintaro Sagami, Ryohei Hayashi, Yoshitaka Ueno, Koji Arihiro, Kazuaki Chayama
Background and study aims: Colitis-associated cancer/dysplasia (CC/D) can affect the life expectancy of patients with ulcerative colitis (UC). Although the utility of magnifying chromocolonoscopy has been shown, the use of optical magnification with narrow band imaging (NBI) for distinguishing CC/D from non-neoplastic lesions in patients with UC has not been reported. We evaluated whether endoscopic findings are distinguishing and thus assessed the clinical usefulness of NBI magnification for differentiating UC-associated lesions...
November 2016: Endoscopy International Open
keyword
keyword
57353
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"