Should twin‐mode white‐light and virtual chromoendoscopy of pre‐defined mucosal stations be considered a standard of care for transnasal panendoscopy?

2021 ◽  
Author(s):  
Elizabeth J Williams ◽  
SA Reza Nouraei
Keyword(s):  
White Light ◽  
Standard Of Care ◽  
Virtual Chromoendoscopy

The Efficacy of Virtual Chromoendoscopy in the Diagnosis of Portal Hypertensive Gastropathy

2016 ◽  
Vol 25 (3) ◽  
pp. 289-293
Author(s):  
Anda Carmen Achim ◽  
Stefan Cristian Vesa ◽  
Eugen Dumitru
Keyword(s):  
Diagnostic Criteria ◽  
White Light ◽  
Narrow Band Imaging ◽  
Endoscopic Examination ◽  
Kappa Statistics ◽  
Portal Hypertensive Gastropathy ◽  
Mosaic Pattern ◽  
White Light Endoscopy ◽  
A New Technique ◽  
Virtual Chromoendoscopy

Background: Diagnosis of portal hypertensive gastropathy (PHG) is based on endoscopic criteria. I-scan technology, a new technique of virtual chromoendoscopy, increases the diagnostic accuracy for lesions in the gastrointestinal tract. Aim: To establish the role of i-scan endoscopy in the diagnosis of PHG. Method: In this prospective study, endoscopic examination was conducted first by using white light and after that i-scan 1 and i-scan 2 technology in a group of 50 consecutive cirrhotic patients. The endoscopic diagnostic criteria for PHG followed the Baveno criteria. The interobserver agreement between white light endoscopy and i-scan endoscopy was determined using Cohen’s kappa statistics. Results: Forty-five of the 50 patients met the diagnostic criteria for PHG when examined by i-scan endoscopy and 39 patients were diagnosed with PHG by white light endoscopy. The strength of agreement between the two methods for the diagnosis of PHG was moderate (k=0.565; 95%CI 0.271-0.859; p<0.001). I-scan 1 classified the mosaic pattern better than classic endoscopy; i-scan 2 described better the red spots. Conclusion: I-scan examination increased the diagnostic sensitivity of PHG. The diagnostic criteria (mosaic pattern and red spots) were easier to observe endoscopically using i-scan than in white light.Abbreviations: FICE: Fuji Intelligent chromoendoscopy; GAVE: gastric antral vascular ectasia; NBI: narrow band imaging; PHG: portal hypertensive gastropathy; PHT: portal hypertension; UGIB: upper gastrointestinal bleeding.

scholarly journals 436 THE INCREMENTAL BENEFIT OF DYE-BASED CHROMOENDOSCOPY IN ADDITION TO HIGH-DEFINITION WHITE LIGHT AND VIRTUAL CHROMOENDOSCOPY FOR LESION ASSESSMENT AND PREDICTION OF SUBMUCOSAL INVASION.

2020 ◽  
Vol 91 (6) ◽  
pp. AB43
Author(s):  
Mayenaaz Sidhu ◽  
David J. Tate ◽  
Sergei Vosko ◽  
Neal C. Shahidi ◽  
Iddo Bar-Yishay ◽  
...  
Keyword(s):  
White Light ◽  
Submucosal Invasion ◽  
High Definition ◽  
Incremental Benefit ◽  
Virtual Chromoendoscopy

scholarly journals Impact of endoscopy system, high definition, and virtual chromoendoscopy in daily routine colonoscopy: a randomized trial

Endoscopy ◽  
2019 ◽  
Vol 51 (03) ◽  
pp. 237-243 ◽  
Author(s):  
Philip Roelandt ◽  
Ingrid Demedts ◽  
Hilde Willekens ◽  
Talat Bessissow ◽  
Lieve Braeye ◽  
...  
Keyword(s):  
White Light ◽  
Detection Rate ◽  
Imaging Techniques ◽  
Tertiary Hospital ◽  
Imaging Modalities ◽  
Daily Routine ◽  
High Definition ◽  
Adenoma Detection ◽  
Virtual Chromoendoscopy ◽  
Serrated Adenomas

Abstract Background To improve detection of mucosal lesions during colonoscopy a number of imaging modalities have been suggested, including high definition and virtual chromoendoscopy. Given the theoretical advantage of these new imaging techniques, we aimed to investigate their use for the detection of polyps in patients referred for colonoscopy in a large tertiary hospital. Methods Demographic, endoscopic, and histological data from 1855 consecutive patients undergoing colonoscopy were collected prospectively. Patients were randomly assigned to three endoscopy systems (Fujinon, Olympus, or Pentax) in combination with four modalities: conventional white-light colonoscopy (n = 505), high definition white-light colonoscopy (n = 582), virtual chromoendoscopy (n = 285) and high definition virtual chromoendoscopy (n = 483). Results The mean adenoma detection rate (ADR) was 34.9 %, and the adenoma per colonoscopy rate (APCR) was 2.1. No significant differences were noted between the three endoscopy systems. Moreover, no differences in ADR or APCR were observed between the four imaging modalities. High definition white-light colonoscopy resulted in a significantly higher detection of sessile serrated adenomas (8.2 % vs. 3.8 %; P < 0.01) and adenocarcinomas (2.6 % vs. 0.5 %; P < 0.05) compared with the conventional procedure. Conclusions No significant differences in ADR or APCR between different endoscopy systems, high definition, and/or virtual chromoendoscopy could be observed in routine colonoscopies in the general population. High definition endoscopy was associated with a significantly higher detection rate of serrated adenomas and adenocarcinomas.

Small Colorectal Polyps

2014 ◽  
Vol 33 (1) ◽  
pp. 38-41 ◽  
Author(s):  
Rainer Schoefl ◽  
Alexander Ziachehabi ◽  
Friedrich Wewalka
Keyword(s):  
White Light ◽  
Colorectal Polyps ◽  
High Grade Dysplasia ◽  
High Grade ◽  
Hyperplastic Polyps ◽  
High Definition ◽  
White Light Endoscopy ◽  
Virtual Chromoendoscopy ◽  
Experienced Endoscopists

Small (<10 mm) and diminutive (<6 mm) polyps harbour high-grade dysplasia or cancer in 0.3-5% of cases. The potential to grow and develop advanced histology is low. Traditional guidelines still recommend the removal of all polyps. Visual characterisation with modern endoscopic technology could enable us to leave diminutive hyperplastic polyps in situ and remove but discard small polyps. In expert hands, high-definition white-light endoscopy and virtual chromoendoscopy can reach an accuracy of more than 90% in distinguishing between hyperplastic and adenomatous pathology. For less experienced endoscopists the values are lower and therefore the concept is not yet fit for routine use. Polyps can be removed completely with snares but not with forceps. The cold snaring technique in particular has proved safe and effective for small polyps. With more experience in the future a ‘cut and discard' strategy for small polyps and a ‘do not resect' strategy for diminutive polyps will save money and time to deal with more advanced lesions.

scholarly journals Detectability of Colon Polyp Using Computed Virtual Chromoendoscopy with Flexible Spectral Imaging Color Enhancement

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Shinsuke Kiriyama ◽  
Takahisa Matsuda ◽  
Takeshi Nakajima ◽  
Taku Sakamoto ◽  
Yutaka Saito ◽  
...  
Keyword(s):  
Pilot Study ◽  
White Light ◽  
Spectral Imaging ◽  
Biopsy Specimens ◽  
Neoplastic Lesions ◽  
Colon Neoplasia ◽  
Color Enhancement ◽  
Virtual Chromoendoscopy ◽  
The Right

The aim of this pilot study was to assess the feasibility of using computed virtual chromoendoscopy with the flexible spectral imaging color enhancement (FICE) for colon neoplasia screening. A modified back-to-back colonoscopy using FICE and white light in the right-sided colon was conducted prospectively for the consecutive patients attending for the postoperative (sigmoidectomy or anterior resection) follow-up colonoscopy. Histopathology of detected lesions was confirmed by evaluation of endoscopic resection or biopsy specimens. One-hundred and two patients were enrolled, and 100 patients (61 males and mean age 63 years) were finally analyzed. The total number of polyps detected by FICE and white light colonoscopy was 65 and 45, respectively. The miss rate for all polyps with FICE (24%) was significantly less than that with white light (46%) (P=0.03). Colonoscopy using FICE could beneficially enhance the detection of neoplastic lesions in the right-sided colon compared to white light colonoscopy.

Comparison of probe-based confocal endomicroscopy with virtual chromoendoscopy and white-light endoscopy for diagnosis of gastric intestinal metaplasia

2013 ◽  
Vol 27 (12) ◽  
pp. 4649-4655 ◽  
Author(s):  
Lee Guan Lim ◽  
Khay Guan Yeoh ◽  
Supriya Srivastava ◽  
Yiong Huak Chan ◽  
Ming Teh ◽  
...  
Keyword(s):  
Intestinal Metaplasia ◽  
White Light ◽  
Gastric Intestinal Metaplasia ◽  
White Light Endoscopy ◽  
Confocal Endomicroscopy ◽  
Virtual Chromoendoscopy

Tu1470 Virtual Chromoendoscopy With I-SCAN Improves the Detection of Right Sided Colon Adenomas in Comparison to High-Definition White Light Endoscopy

2013 ◽  
Vol 77 (5) ◽  
pp. AB552
Author(s):  
Helmut Neumann ◽  
Michael Vieth ◽  
Claudia Günther ◽  
Raja Atreya ◽  
Jürgen Siebler ◽  
...  
Keyword(s):  
White Light ◽  
High Definition ◽  
White Light Endoscopy ◽  
Colon Adenomas ◽  
Virtual Chromoendoscopy
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