Computer-aided classification of colorectal polyps using blue-light and linked-color imaging

T. Scheeve, Ramon-Michel Schreuder, F. van der Sommen, Joep E.G. IJspeert, Evelien Dekker, Erik J. Schoon, P.H.N. de With

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

1 Citaat (Scopus)

Samenvatting

Colorectal cancer (CRC) is one of the leading causes of cancer-related deaths. Since most CRCs develop from colorectal polyps (CRPs), accurate endoscopic differentiation facilitates decision making on resection of CRPs, thereby increasing cost-efficiency and reducing patient risk. Current classification systems based on whitelight imaging (WLI) or narrow-band imaging (NBI) have limited predictive power, or they do not consider sessile serrated adenomas/polyps (SSA/Ps), although these cause up to 30% of all CRCs. To better differentiate adenomas, hyperplastic polyps, and SSA/Ps, this paper explores the feasibility of two approaches: (1) an accurate computer-aided diagnosis (CADx) system for automated diagnosis of CRPs, and (2) novel endoscopic imaging techniques like blue-light imaging (BLI) and linked-color imaging (LCI). Two methods are explored to predict histology: (1) direct classification using a support vector machine (SVM) classifier, and (2) classification via a clinical classification model (WASP classification) combined with an SVM. The use of probabilistic features of SVM facilitates objective quantification of the detailed classification process. Automated differentiation of colonic polyp subtypes reaches accuracies of 78−96%, thereby improving medical expert results by 4−20%. Diagnostic accuracy for directly predicting adenomatous from hyperplastic histology reaches 93% and 87−90% using NBI and the novel BLI and LCI techniques, respectively, thus improving medical expert results by 26% and 20−23%, respectively. Predicting adenomatous histology in diminutive polyps with high confidence yields NPVs of 100%, clearly satisfying the PIVI guideline recommendation on endoscopic innovations (≥90% NPV). Our CADx system outperforms clinicians, while the novel BLI technique adds performance value.
Originele taal-2Engels
TitelMedical Imaging 2019: Computer-Aided Diagnosis
SubtitelComputer-Aided Diagnosis
RedacteurenKensaku Mori, Horst K. Hahn
Plaats van productieBellingham
UitgeverijSPIE
Aantal pagina's8
ISBN van elektronische versie9781510625471
DOI's
StatusGepubliceerd - 13 mrt 2019
EvenementMedical Imaging 2019: Computer-Aided Diagnosis - San Diego, Verenigde Staten van Amerika
Duur: 17 feb 201920 feb 2019

Publicatie series

NaamProceedings of SPIE
Volume10950
ISSN van geprinte versie0277-786X

Congres

CongresMedical Imaging 2019: Computer-Aided Diagnosis
LandVerenigde Staten van Amerika
StadSan Diego
Periode17/02/1920/02/19

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