1. Empowering Portable Age-Related Macular Degeneration Screening: Evaluation of a Deep Learning Algorithm for a Smartphone Fundus Camera.
- Author
-
Savoy FM, Rao DP, Toh JK, Ong B, Sivaraman A, Sharma A, and Das T
- Subjects
- Humans, Retrospective Studies, Aged, Fundus Oculi, Female, Sensitivity and Specificity, Photography instrumentation, Male, ROC Curve, Middle Aged, Mass Screening methods, Mass Screening instrumentation, Deep Learning, Macular Degeneration diagnosis, Macular Degeneration diagnostic imaging, Smartphone, Algorithms
- Abstract
Objectives: Despite global research on early detection of age-related macular degeneration (AMD), not enough is being done for large-scale screening. Automated analysis of retinal images captured via smartphone presents a potential solution; however, to our knowledge, such an artificial intelligence (AI) system has not been evaluated. The study aimed to assess the performance of an AI algorithm in detecting referable AMD on images captured on a portable fundus camera., Design, Setting: A retrospective image database from the Age-Related Eye Disease Study (AREDS) and target device was used., Participants: The algorithm was trained on two distinct data sets with macula-centric images: initially on 108,251 images (55% referable AMD) from AREDS and then fine-tuned on 1108 images (33% referable AMD) captured on Asian eyes using the target device. The model was designed to indicate the presence of referable AMD (intermediate and advanced AMD). Following the first training step, the test set consisted of 909 images (49% referable AMD). For the fine-tuning step, the test set consisted of 238 (34% referable AMD) images. The reference standard for the AREDS data set was fundus image grading by the central reading centre, and for the target device, it was consensus image grading by specialists., Outcome Measures: Area under receiver operating curve (AUC), sensitivity and specificity of algorithm., Results: Before fine-tuning, the deep learning (DL) algorithm exhibited a test set (from AREDS) sensitivity of 93.48% (95% CI: 90.8% to 95.6%), specificity of 82.33% (95% CI: 78.6% to 85.7%) and AUC of 0.965 (95% CI:0.95 to 0.98). After fine-tuning, the DL algorithm displayed a test set (from the target device) sensitivity of 91.25% (95% CI: 82.8% to 96.4%), specificity of 84.18% (95% CI: 77.5% to 89.5%) and AUC 0.947 (95% CI: 0.911 to 0.982)., Conclusion: The DL algorithm shows promising results in detecting referable AMD from a portable smartphone-based imaging system. This approach can potentially bring effective and affordable AMD screening to underserved areas., Competing Interests: Competing interests: FMS, DPR, TJK, BO and ASi are employees of Remidio Innovative Solutions. Remidio Innovative Solutions, Inc, USA and Medios Technologies are wholly owned subsidiaries of Remidio Innovative Solutions Pvt Ltd, India. FMS has patents and financial interests in Remidio Innovative Solutions Pvt Ltd (ESOP and Stock). ASi has patents, stock and leadership role. ASh is a consultant for Novartis, Allergan, Bayer and Intas, unrelated to this work., (© Author(s) (or their employer(s)) 2024. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
- Published
- 2024
- Full Text
- View/download PDF