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Title Automated Topographic Segmentation and Transit Time Estimation in Endoscopic Capsule Exams
Author João Paulo Cunha, Miguel Coimbra, P. Campos, J. M. Soares
Journal IEEE Transactions on Medical Imaging
Volume 27
Number 1
Pages 19-27
Month January
Year 2008
DOI [1]
Group (before 2015) Transverse Activity on Innovative Biomedical Technologies
Indexed by ISI Yes

Endoscopic capsule is a recent medical technology with important clinical benefits but suffering from a practical handicap: long exam annotation times. This paper proposes and compares two approaches (Bayesian and support vector machines) that can be used to segment the gastrointestinal tract into its four major topographic areas, allowing the automatic estimation of the clinically relevant gastric and intestinal sections and corresponding transit times. According to medical specialists, this can reduce exam annotation times by up to 12% (15 min). This automatic tool has been integrated into our CapView annotation software that is currently being used by three medical institutions.