Artificial intelligence using a convolutional neural network for automatic detection of small-bowel angioectasia in capsule endoscopy images.

Digestive Endoscopy : Official Journal of the Japan Gastroenterological Endoscopy Society
Akiyoshi TsuboiTomohiro Tada

Abstract

Although small-bowel angioectasia is reported as the most common cause of bleeding in patients and frequently diagnosed by capsule endoscopy (CE) in patients with obscure gastrointestinal bleeding, a computer-aided detection method has not been established. We developed an artificial intelligence system with deep learning that can automatically detect small-bowel angioectasia in CE images. We trained a deep convolutional neural network (CNN) system based on Single Shot Multibox Detector using 2237 CE images of angioectasia. We assessed its diagnostic accuracy by calculating the area under the receiver operating characteristic curve (ROC-AUC), sensitivity, specificity, positive predictive value, and negative predictive value using an independent test set of 10 488 small-bowel images, including 488 images of small-bowel angioectasia. The AUC to detect angioectasia was 0.998. Sensitivity, specificity, positive predictive value, and negative predictive value of CNN were 98.8%, 98.4%, 75.4%, and 99.9%, respectively, at a cut-off value of 0.36 for the probability score. We developed and validated a new system based on CNN to automatically detect angioectasia in CE images. This may be well applicable to daily clinical practice to redu...Continue Reading

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Citations

Nov 20, 2020·Digestive Endoscopy : Official Journal of the Japan Gastroenterological Endoscopy Society·Roberto Trasolini, Michael F Byrne
Jan 16, 2021·Journal of Gastroenterology and Hepatology·Xavier DrayAnastasios Koulaouzidis
Jan 26, 2021·Computerized Medical Imaging and Graphics : the Official Journal of the Computerized Medical Imaging Society·Andrea CaroppoPietro Siciliano
Dec 29, 2020·World Journal of Gastroenterology : WJG·Gulshan ParasherManmeet Rawat
Sep 24, 2020·Computerized Medical Imaging and Graphics : the Official Journal of the Computerized Medical Imaging Society·Tariq RahimSoo Young Shin
Jun 23, 2021·Digestive Diseases and Sciences·Yutaka OkagawaYutaka Saito
Jun 29, 2021·Therapeutic Advances in Gastrointestinal Endoscopy·Alexander R RobertsonAnastasios Koulaouzidis
Jun 27, 2021·Best Practice & Research. Clinical Gastroenterology·Stefania PiccirelliCristiano Spada
Jul 3, 2021·Diagnostics·Ioannis TziortziotisSergio Coda
Dec 3, 2021·Scandinavian Journal of Gastroenterology·Elizabeth WhiteHagen Wenzek

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