Open AccessDetection and characterization of colorectal polyps using high‐definition white light and i‐Scan: Evidence‐based consensus recommendations using a modified Delphi process
Author(s) -
Bhandari Pradeep,
Thayalasekaran Sreedhari,
Keisslich Ralf,
Bisschops Raf,
Hoffmann Arthur,
Haidry Rehan,
Esteban Jose,
López Viedma Bartolomé,
Godzhello Elina,
Almadi Majid,
Neumann Helmut,
Sanduleanu Silvia
Publication year - 2018
Publication title -
ueg journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.667
H-Index - 35
eISSN - 2050-6414
pISSN - 2050-6406
DOI - 10.1177/2050640618764531
Subject(s) - medicine , white light , colorectal polyp , colorectal cancer , radiology , delphi method , medical physics , colonoscopy , artificial intelligence , cancer , optics , physics , computer science
Background i‐Scan is an image enhancement modality, which provides enhanced views of mucosal structures and vascular patterns. Methods A modified Delphi process was used to develop a series of evidence‐based statements on the role of high‐definition white light (HDWL) and i‐Scan for the detection and diagnosis of colorectal neoplasms. Each statement was voted to achieve consensus (i.e. >80% agreement). Results Seven proposed statements achieved consensus: (1) HDWL is recommended rather than standard definition (SD) for detection and diagnosis of colorectal neoplasms; (2) HDWL colonoscopy with i‐Scan improves polyp and adenoma detection rates when compared with SD colonoscopy; (3) HDWL + i‐Scan is superior to HDWL alone for the optical diagnosis of colorectal neoplasms; (4) HDWL + i‐Scan in expert hands meets American Society for Gastrointestinal Endoscopy (ASGE) in the Preservation and Incorporation of Valuable Endoscopic Innovations (PIVI) standards for optical diagnosis of diminutive neoplasms; (5) HDWL + i‐Scan in non‐expert hands does not meet ASGE PIVI standards for optical diagnosis of diminutive neoplasms; (6) optical diagnosis of polyps with i‐Scan has a learning curve and needs systematic training; and (7) the performance of i‐Scan for the in vivo diagnosis of colorectal neoplasms is similar to Narrow Band Imaging (NBI) and Fuji Intelligent Chromo Endoscopy (FICE). Conclusions Seven proposed statements on the use of HDWL and i‐Scan for the detection and diagnosis of colorectal neoplasms achieved consensus.