Journal Article

A multi-centre polyp detection and segmentation dataset for generalisability assessment

Salem, Osama E., Rittscher, Jens, Ghatwary, Noha, Riegler, Michael A., Halvorsen, Pål, Cannizzaro, Renato, Jha, Debesh, Realdon, Stefano, Petlund, Andreas, Ali, Sharib, Daul, Christian, East, James E., Anonsen, Kim V., Lamarque, Dominique, de Lange, Thomas

2023

Overview

Polyps in the colon are widely known cancer precursors identified by colonoscopy. Whilst most polyps are benign, the polyp’s number, size and surface structure are linked to the risk of colon cancer. Several methods have been developed to automate polyp detection and segmentation. However, the main issue is that they are not tested rigorously on a large multicentre purpose-built dataset, one reason being the lack of a comprehensive public dataset. As a result, the developed methods may not generalise to different population datasets. To this extent, we have curated a dataset from six unique centres incorporating more than 300 patients. The dataset includes both single frame and sequence data with 3762 annotated polyp labels with precise delineation of polyp boundaries verified by six senior gastroenterologists. To our knowledge, this is the most comprehensive detection and pixel-level segmentation dataset (referred to as PolypGen ) curated by a team of computational scientists and expert gastroenterologists. The paper provides insight into data construction and annotation strategies, quality assurance, and technical validation.

• Publisher: Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
• Subject: 639/705/117 / 692/699/1503/1504/1885/1393 / Colon cancer / Colonic Neoplasms / Colonic Polyps / Colonic Polyps - diagnosis / Colonoscopy / Colonoscopy - methods / Colorectal cancer / Computer applications / Computer graphics and computer vision / Computer Science / Computer Sciences / Data Descriptor / Datasets / Datavetenskap (datalogi) / Datorgrafik och datorseende / diagnosis / Gastroenterologi och hepatologi / Gastroenterology / Gastroenterology and Hepatology / Human health and pathology / Humanities and Social Sciences / Humans / Hépatology and Gastroenterology / Image Processing / Life Sciences / Medical Imaging / methods / multidisciplinary / Polyps / Quality assurance / Science / Science (multidisciplinary) / Segmentation