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https://www.readbyqxmd.com/read/28732392/systematic-assessment-with-i-scan-magnification-endoscopy-and-acetic-acid-improves-dysplasia-detection-in-patients-with-barrett-s-esophagus
#1
Gideon Lipman, Raf Bisschops, Vinay Sehgal, Jacobo Ortiz-Fernández-Sordo, Rami Sweis, Jose M Esteban, Rifat Hamoudi, Matthew R Banks, Krish Ragunath, Laurence B Lovat, Rehan J Haidry
Background and study aims Enhanced endoscopic imaging with chromoendoscopy may improve dysplasia recognition in patients undergoing assessment of Barrett's esophagus (BE). This may reduce the need for random biopsies to detect more dysplasia. The aim of this study was to assess the effect of magnification endoscopy with I-SCAN (Pentax, Tokyo, Japan) and acetic acid (ACA) on dysplasia detection in BE using a novel mucosal and vascular classification system. Methods BE segments and suspicious lesions were recorded with high definition white-light and magnification endoscopy enhanced using all I-SCAN modes in combination...
July 21, 2017: Endoscopy
https://www.readbyqxmd.com/read/28720474/nitrous-oxide-cryotherapy-for-treatment-of-esophageal-squamous-cell-neoplasia-initial-multicenter-international-experience-with-a-novel-portable-cryoballoon-ablation-system-with-video
#2
Marcia Irene Canto, Julian Abrams, Hannah Kunzli, Bas Weusten, Yoshihiro Komatsu, Blair Jobe, Charles J Lightdale
BACKGROUND AND AIMS: Early esophageal squamous cell neoplasia (ESCN) can be successfully treated by endoscopic mucosal resection (EMR), endoscopic submucosal dissection (ESD), or radiofrequency ablation (RFA). A new portable, battery-powered cryotherapy system using nitrous oxide (cryoballoon focal ablation system (CbFAS) has been used for Barrett's esophagus. It consists of a small hand-held device containing liquid nitrous oxide, which converts to gas within a low-pressure-compliant through-the-scope balloon and freezes targeted mucosa in contact with the balloon...
July 15, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28706415/role-of-new-endoscopic-techniques-in-inflammatory-bowel-disease-management-has-the-change-come
#3
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/28700903/computer-based-classification-of-chromoendoscopy-images-using-homogeneous-texture-descriptors
#4
Hussam Ali, Muhammad Sharif, Mussarat Yasmin, Mubashir Husain Rehmani
Computer-aided analysis of clinical pathologies is a challenging task in the field of medical imaging. Specifically, the detection of abnormal regions in the frames collected during an endoscopic session is difficult. The variations in the conditions of image acquisition, such as field of view or illumination modification, make it more demanding. Therefore, the design of a computer-assisted diagnostic system for the recognition of gastric abnormalities requires features that are robust to scale, rotation, and illumination variations of the images...
July 5, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28698230/chromoendoscopy-versus-narrow-band-imaging-in-uc-a-prospective-randomised-controlled-trial
#5
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/28691042/high-definition-iscan-virtual-chromoendoscopy-has-high-sensitivity-and-specificity-for-the-diagnosis-of-eosinophilic-esophagitis
#6
Eustace Gregory, Miriam Fort Gasia, Xianyong Gui, Subrata Ghosh, Marietta Iacucci
No abstract text is available yet for this article.
July 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/28690768/endoscopic-recommendations-for-colorectal-cancer-screening-and-surveillance-in-patients-with-inflammatory-bowel-disease-review-of-general-recommendations
#7
REVIEW
Jose María Huguet, Patricia Suárez, Luis Ferrer-Barceló, Lucía Ruiz, Ana Monzó, Ana Belén Durá, Javier Sempere
Screening for colorectal cancer (CRC) in patients with inflammatory bowel disease (IBD) is recommended by all scientific societies. However, there are differences in the recommendations they make regarding screening and surveillance. We address a series of questions that come up in the daily clinical practice of a physician. The first two questions that are raised are: (1) Who should be offered screening for CRC? and (2) When should the first colonoscopy be performed? The next step is to decide who should undergo endoscopic surveillance and at what intervals they should be performed...
June 16, 2017: World Journal of Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28690452/advances-in-the-diagnosis-and-management-of-colonic-dysplasia-in-patients-with-inflammatory-bowel-disease
#8
Shirley Cohen-Mekelburg, Yecheskel Schneider, Stephanie Gold, Ellen Scherl, Adam Steinlauf
The prevalence of colorectal cancer (CRC) in inflammatory bowel disease (IBD) is estimated at 3.7%. Risk factors for CRC include more severe disease (as reflected by the extent of disease and the duration of poorly controlled disease), family history of CRC, pseudopolyps, primary sclerosing cholangitis, and male sex. In addition, both early and late onset of IBD have been shown to be risk factors in different studies. Most societal guidelines recommend initiation of surveillance colonoscopy at 8 to 10 years after IBD symptom onset, followed by subsequent surveillance in 1- to 2-year intervals...
June 2017: Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28690450/the-role-of-chromoendoscopy-in-evaluating-colorectal-dysplasia
#9
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
#10
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/28616092/vascularization-from-flexible-imaging-color-enhancement-fice-for-polyp-localization
#11
Vbs Prasath
Background. Virtual chromoendoscopy is an imaging technology that helps in better visualizing the gastrointestinal tract effectively. Recently, the flexible imaging color enhancement (FICE) technique developed by Fijifilm has been considered an alternative to traditional dye spraying. This results in a clearer visualization of the vascular patterns than through the traditional white light endoscopy imaging methods. The performance of vasculature based polyp localization in both traditional and corresponding virtual coloration by FICE was analyzed...
April 2017: Journal of Medicine and Life
https://www.readbyqxmd.com/read/28611477/a-guide-to-multimodal-endoscopy-imaging-for-gastrointestinal-malignancy-an-early-indicator
#12
REVIEW
Arthur Hoffman, Henrik Manner, Johannes W Rey, Ralf Kiesslich
Multimodality imaging is an essential aspect of endoscopic surveillance for the detection of neoplastic lesions, such as dysplasia or intramucosal cancer, because it improves the efficacy of endoscopic surveillance and therapeutic procedures in the gastrointestinal tract. This approach reveals mucosal abnormalities that cannot be detected by standard endoscopy. Currently, these imaging techniques are divided into those for primary detection and those for targeted imaging and characterization, the latter being used to visualize areas of interest in detail and permit histological evaluation...
July 2017: Nature Reviews. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28603817/-french-comment-on-article-clinical-implications-of-low-grade-dysplasia-found-during-inflammatory-bowel-disease-surveillance-a-retrospective-study-comparing-chromoendoscopy-and-white-light-endoscopy1
#13
https://www.readbyqxmd.com/read/28577765/the-role-of-adjunct-imaging-in-endoscopic-detection-of-dysplasia-in-barrett-s-esophagus
#14
REVIEW
Pujan Kandel, Michael B Wallace
Advances in imaging technologies have demonstrated promise in early detection of dysplasia and cancer in Barrett's esophagus (BE). Optical chromoendoscopy, dye-based chromoendoscopy, and novel technologies have provided the opportunity to visualize the cellular and subcellular structures. Only narrow-band imaging and acetic acid chromoendoscopy have reached benchmarks for clinical use. Volumetric laser endomicroscopy and molecular imaging are not established for routine use. Best practice in management of BE should be focused on careful endoscopic examination, resection, or ablation of the entire abnormal lesion, as well as the use of available imaging technique that has good diagnostic accuracy...
July 2017: Gastrointestinal Endoscopy Clinics of North America
https://www.readbyqxmd.com/read/28564713/direct-peroral-cholangioscopy-for-diagnosis-of-bile-duct-lesions-using-an-i-scan-ultraslim-endoscope-a-pilot-study
#15
Yun Nah Lee, Jong Ho Moon, Hyun Jong Choi, Tae Hoon Lee, Moon Han Choi, Sang-Woo Cha, Young Deok Cho, Sang-Heum Park
Background and study aims I-SCAN is a computed virtual chromoendoscopy (CVC) system designed to enhance surface and vascular patterns. In this study, we evaluated the usefulness of direct peroral cholangioscopy (POC) using I-SCAN compared with a conventional white-light image (WLI) to diagnose bile duct lesions. Patients and methods Patients with mucosal lesions in the bile duct detected during direct POC were enrolled prospectively. The quality of endoscopic visualization and the visual diagnosis were assessed using I-SCAN and WLI modes, respectively, during direct POC...
May 31, 2017: Endoscopy
https://www.readbyqxmd.com/read/28560120/efficacy-evaluation-of-save-for-the-diagnosis-of-superficial-neoplastic-lesion
#16
Farah Deeba, Shahed K Mohammed, Francis Minhthang Bui, Khan A Wahid
The detection of non-polypoid superficial neoplastic lesions using current standard of white light endoscopy surveillance and random biopsy is associated with high miss rate. The subtle changes in mucosa caused by the flat and depressed neoplasms often go undetected and do not qualify for further investigation, e.g., biopsy and resection, thus increasing the risk of cancer advancement. This paper presents a screening tool named the saliency-aided visual enhancement (SAVE) method, with an objective of highlighting abnormalities in endoscopic images to detect early lesions...
2017: IEEE Journal of Translational Engineering in Health and Medicine
https://www.readbyqxmd.com/read/28492712/lugol-s-iodine-chromoendoscopy-versus-narrow-band-image-enhanced-endoscopy-for-the-detection-of-esophageal-cancer-in-patients-with-stenosis-secondary-to-caustic-corrosive-agent-ingestion
#17
Caterina Maria Pia Simoni Pennachi, Diogo Turiani Hourneaux de Moura, Renato Bastos Pimenta Amorim, Hugo Gonçalo Guedes, Vivek Kumbhari, Eduardo Guimarães Hourneaux de Moura
BACKGROUND: The diagnosis of corrosion cancer should be suspected in patients with corrosive ingestion if after a latent period of negligible symptoms there is development of dysphagia, or poor response to dilatation, or if respiratory symptoms develop in an otherwise stable patient of esophageal stenosis. Narrow Band Imaging detects superficial squamous cell carcinoma more frequently than white-light imaging, and has significantly higher sensitivity and accuracy compared with white-light...
May 8, 2017: Arquivos de Gastroenterologia
https://www.readbyqxmd.com/read/28475382/dysplasia-and-colorectal-cancer-surveillance-in-inflammatory-bowel-disease
#18
Samba Siva Reddy Pulusu, Ian C Lawrance
Inflammatory bowel disease (IBD) patients are at an increased risk of developing colorectal cancer (CRC), a devastating complication of which intestinal dysplasia is the precursor. Considerable progress has been made to determine CRC risk in IBD, identification & management of dysplasia and preventative methods. Traditionally, surveillance colonoscopies with random colonic biopsies was used. However recent data suggests that chromoendoscopy is a better method of surveillance. Using 5-aminosalicylic acid agents primarily for chemoprevention is an ongoing debate however, when prescribed along with other strategies to control inflammation, their use is considered of benefit...
May 16, 2017: Expert Review of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28472835/narrow-band-imaging-in-the-diagnosis-of-deep-submucosal-colorectal-cancers-a-systematic-review-and-meta-analysis
#19
Qing-Wei Zhang, La-Mei Teng, Xin-Tian Zhang, Jing-Jing Zhang, Ying Zhou, Zhi-Rui Zhou, Yi-Chao Hou, Zhi-Zheng Ge, Xiao-Bo Li
Background and aims Magnifying endoscopy with narrow-band imaging (M-NBI) has been widely used in the differential diagnosis of deep submucosal colorectal cancers (dSMCs) from superficial submucosal cancers (sSMCs) and intramucosal neoplasms. We aimed to pool the diagnostic efficacy of M-NBI and compare it with that of magnifying chromoendoscopy (M-CE) in diagnosing colorectal dSMC. Methods PubMed, EMBASE, and the Cochrane Library were searched to identify eligible studies. Meeting abstracts were also searched...
May 4, 2017: Endoscopy
https://www.readbyqxmd.com/read/28446997/endoscopic-submucosal-dissection-and-endoscopic-mucosal-resection-for-early-stage-esophageal-cancer
#20
REVIEW
Bo Ning, Mohamed M Abdelfatah, Mohamed O Othman
Mortality from esophageal cancer remains high despite advances in medical therapy. Although the incidence of squamous cell carcinoma of the esophagus remains unchanged, the incidence of the esophageal adenocarcinoma has increased over time. Gastroesophageal reflux disease (GERD and obesity are contributing factors to the development of Barrett's esophagus and subsequent development of adenocarcinoma. Early recognition of the disease can lead to resection of esophageal cancer prior to the development of lymphovascular invasion...
March 2017: Annals of Cardiothoracic Surgery
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