Table of Contents Author Guidelines Submit a Manuscript
Journal of Ophthalmology
Volume 2019, Article ID 6319581, 7 pages
https://doi.org/10.1155/2019/6319581
Research Article

Automated Detection of Macular Diseases by Optical Coherence Tomography and Artificial Intelligence Machine Learning of Optical Coherence Tomography Images

1Department of Ophthalmology & Visual Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
2Technology Laboratory, Cresco Ltd., Tokyo, Japan

Correspondence should be addressed to Tsutomu Yasukawa; pj.ca.uc-ayogan.dem@awakusay

Received 14 January 2019; Revised 28 February 2019; Accepted 4 March 2019; Published 9 April 2019

Academic Editor: Takeshi Iwase

Copyright © 2019 Soichiro Kuwayama et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Purpose. Although optical coherence tomography (OCT) is essential for ophthalmologists, reading of findings requires expertise. The purpose of this study is to test deep learning with image augmentation for automated detection of chorioretinal diseases. Methods. A retina specialist diagnosed 1,200 OCT images. The diagnoses involved normal eyes () and those with wet age-related macular degeneration (AMD) (), diabetic retinopathy (DR) (), epiretinal membranes (ERMs) (), and another 19 diseases. Among them, 1,100 images were used for deep learning training, augmented to 59,400 by horizontal flipping, rotation, and translation. The remaining 100 images were used to evaluate the trained convolutional neural network (CNN) model. Results. Automated disease detection showed that the first candidate disease corresponded to the doctor’s decision in 83 (83%) images and the second candidate disease in seven (7%) images. The precision and recall of the CNN model were 0.85 and 0.97 for normal eyes, 1.00 and 0.77 for wet AMD, 0.78 and 1.00 for DR, and 0.75 and 0.75 for ERMs, respectively. Some of rare diseases such as Vogt–Koyanagi–Harada disease were correctly detected by image augmentation in the CNN training. Conclusion. Automated detection of macular diseases from OCT images might be feasible using the CNN model. Image augmentation might be effective to compensate for a small image number for training.