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Proceedings Paper

Visualising decision-reasoning regions in computer-aided pathological pattern diagnosis of endoscytoscopic images based on CNN weights analysis
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Paper Abstract

Purpose of this paper is to present a method for visualising decision-reasoning regions in computer-aided pathological pattern diagnosis of endocytoscopic images. Endocytoscope enables us to perform direct observation of cells and their nuclei on the colon wall at maximum 500-times ultramagnification. For this new modality, computer-aided pathological diagnosis system is strongly required for the support of non-expert physicians. To develop a CAD system, we adopt convolutional neural network (CNN) as the classifier of endocytoscopic images. In addition to this classification function, based on CNN weights analysis, we develop a filter function that visualises decision-reasoning regions on classified images. This visualisation function helps novice endocytoscopists to develop their understanding of pathological pattern on endocytoscopic images for accurate endocytoscopic diagnosis. In numerical experiment, our CNN model achieved 90 % classification accuracy. Furthermore, experimental results show that decision-reasoning regions suggested by our filter function contain characteristic pit patterns in real endocytoscopic diagnosis.

Paper Details

Date Published: 16 March 2020
PDF: 8 pages
Proc. SPIE 11314, Medical Imaging 2020: Computer-Aided Diagnosis, 1131438 (16 March 2020); doi: 10.1117/12.2549532
Show Author Affiliations
Hayato Itoh, Nagoya Univ. (Japan)
Zhongyang Lu, Nagoya Univ. (Japan)
Yuichi Mori, Showa Univ. Northern Yokohama Hospital (Japan)
Masashi Misawa, Showa Univ. Northern Yokohama Hospital (Japan)
Masahiro Oda, Nagoya Univ. (Japan)
Shin-ei Kudo, Showa Univ. Northern Yokohama Hospital (Japan)
Kensaku Mori, Nagoya Univ. (Japan)
National Institute of Informatics (Japan)

Published in SPIE Proceedings Vol. 11314:
Medical Imaging 2020: Computer-Aided Diagnosis
Horst K. Hahn; Maciej A. Mazurowski, Editor(s)

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