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.

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

i-Scan high-definition white light endoscopy and colorectal polyps: prediction of histology, interobserver and intraobserver agreement

2012 ◽  
Vol 28 (3) ◽  
pp. 399-406 ◽  
Author(s):  
Flavia Pigò ◽  
Helga Bertani ◽  
Mauro Manno ◽  
Vincenzo Mirante ◽  
Angelo Caruso ◽  
...  
Keyword(s):  
White Light ◽  
Colorectal Polyps ◽  
Intraobserver Agreement ◽  
High Definition ◽  
White Light Endoscopy

Is narrow band imaging superior to high-definition white light endoscopy in the assessment of diminutive colorectal polyps?

2013 ◽  
Vol 28 (3) ◽  
pp. 472-478 ◽  
Author(s):  
Rajvinder Singh ◽  
Yasser Maqbool Bhat ◽  
Prem Harichander Thurairajah ◽  
Mohit Pramod Shetti ◽  
Mahesh Jayanna ◽  
...  
Keyword(s):  
White Light ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Colorectal Polyps ◽  
High Definition ◽  
White Light Endoscopy

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.

Sa1727 - Chromoendoscopy Versus High Definition White Light Endoscopy for Dysplasia Detection in Patients with Inflammatory Bowel Disease: A Systematic Review and Meta-Analysis

2018 ◽  
Vol 154 (6) ◽  
pp. S-371
Author(s):  
Ramprasad Jegadeesan ◽  
Madhav Desai ◽  
Tharani Sundararajan ◽  
Venkata Subhash Gorrepati ◽  
Viveksandeep Thogulva Chandrasekar ◽  
...  
Keyword(s):  
Systematic Review ◽  
Inflammatory Bowel Disease ◽  
White Light ◽  
Bowel Disease ◽  
Meta Analysis ◽  
High Definition ◽  
White Light Endoscopy ◽  
Inflammatory Bowel
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