Bao Nguyen
Unsupervised Region-based Anomaly Detection in Brain MRI with Adversarial Image Inpainting
Nguyen, Bao; Feldman, Adam; Bethapudi, Sarath; Jennings, Andrew; Willcocks, Chris G
Authors
Adam Feldman
Sarath Bethapudi
Andrew Jennings
Dr Chris Willcocks christopher.g.willcocks@durham.ac.uk
Associate Professor
Abstract
Medical segmentation is performed to determine the bounds of regions of interest (ROI) prior to surgery. By allowing the study of growth, structure, and behaviour of the ROI in the planning phase, critical information can be obtained, increasing the likelihood of a successful operation. Usually, segmentations are performed manually or via machine learning methods trained on manual annotations. In contrast, this paper proposes a fully automatic, unsupervised inpainting-based brain tumour segmentation system for T1-weighted MRI. First, a deep convolutional neural network (DCNN) is trained to reconstruct missing healthy brain regions. Then, upon application, anomalous regions are determined by identifying areas of highest reconstruction loss. Finally, superpixel segmentation is performed to segment those regions. We show the proposed system is able to segment various sized and abstract tumours and achieves a mean and standard deviation Dice score of 0.771 and 0.176, respectively.
Citation
Nguyen, B., Feldman, A., Bethapudi, S., Jennings, A., & Willcocks, C. G. (2021). Unsupervised Region-based Anomaly Detection in Brain MRI with Adversarial Image Inpainting. . https://doi.org/10.1109/isbi48211.2021.9434115
Presentation Conference Type | Conference Paper (Published) |
---|---|
Conference Name | 2021 IEEE 18th International Symposium on Biomedical Imaging (ISBI) |
Start Date | Apr 13, 2021 |
End Date | Apr 16, 2021 |
Online Publication Date | May 25, 2021 |
Publication Date | 2021 |
Deposit Date | Nov 27, 2020 |
Publicly Available Date | Oct 28, 2021 |
Publisher | Institute of Electrical and Electronics Engineers |
Pages | 1127-1131 |
DOI | https://doi.org/10.1109/isbi48211.2021.9434115 |
Public URL | https://durham-repository.worktribe.com/output/1141356 |
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