Abstract
The large size of raw 3D optical coherence tomography (OCT) volumes poses challenges for deep learning methods as it cannot be accommodated on a single GPU in its original resolution. The direct analysis of these volumes however, provides advantages such as circumventing the need for the segmentation of retinal structures. Previously, a deep learning (DL) approach was proposed for the detection of glaucoma directly from 3D OCT volumes, where the volumes were significantly downsampled first. In this paper, we propose an end-to-end DL model for the detection of glaucoma that doubles the number of input voxels of the previously proposed method, and also boasts an improved AUC = 0.973 over the results obtained using the previously proposed approach of AUC = 0.946. Furthermore, this paper also includes a quantitative analysis of the regions of the volume highlighted by grad-CAM visualization. Occlusion of these highlighted regions resulted in a drop in performance by 40%, indicating that the regions highlighted by gradient-weighted class activation maps (grad-CAM) are indeed crucial to the performance of the model.
Original language | English |
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Title of host publication | 6th International Workshop, OMIA 2019 Held in Conjunction with MICCAI 2019 Shenzhen, China, October 17 Proceedings |
Editors | Huazhu Fu, Mona K. Garvin, Tom MacGillivray, Yanwu Xu, Yalin Zheng |
Place of Publication | Cham Switzerland |
Publisher | Springer |
Pages | 52-59 |
Number of pages | 8 |
ISBN (Electronic) | 9783030329563 |
ISBN (Print) | 9783030329556 |
DOIs | |
Publication status | Published - 2019 |
Externally published | Yes |
Event | International Workshop on Ophthalmic Medical Image Analysis 2019 - Shenzhen, China Duration: 17 Oct 2019 → 17 Oct 2019 Conference number: 6th https://link.springer.com/book/10.1007/978-3-030-32956-3 (Proceedings) |
Publication series
Name | Lecture Notes in Computer Science |
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Publisher | Springer |
Volume | 11855 |
ISSN (Print) | 0302-9743 |
ISSN (Electronic) | 1611-3349 |
Conference
Conference | International Workshop on Ophthalmic Medical Image Analysis 2019 |
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Abbreviated title | OMIA 2019 |
Country/Territory | China |
City | Shenzhen |
Period | 17/10/19 → 17/10/19 |
Internet address |
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Keywords
- 3D-CNN
- Glaucoma detection
- Gradient-weighted class activation maps
- Optical coherence tomography
- Visual explanations