RAG-FW: A Hybrid Convolutional Framework for the Automated Extraction of Retinal Lesions and Lesion-Influenced Grading of Human Retinal Pathology

Taimur Hassan, Muhammad Usman Akram, Naoufel Werghi, Muhammad Noman Nazir

Research output: Contribution to journalArticlepeer-review

46 Scopus citations

Abstract

The identification of retinal lesions plays a vital role in accurately classifying and grading retinopathy. Many researchers have presented studies on optical coherence tomography (OCT) based retinal image analysis over the past. However, to the best of our knowledge, there is no framework yet available that can extract retinal lesions from multi-vendor OCT scans and utilize them for the intuitive severity grading of the human retina. To cater this lack, we propose a deep retinal analysis and grading framework (RAG-FW). RAG-FW is a hybrid convolutional framework that extracts multiple retinal lesions from OCT scans and utilizes them for lesion-influenced grading of retinopathy as per the clinical standards. RAG-FW has been rigorously tested on 43,613 scans from five highly complex publicly available datasets, containing multi-vendor scans, where it achieved the mean intersection-over-union score of 0.8055 for extracting the retinal lesions and the accuracy of 98.70% for the correct severity grading of retinopathy.

Original languageBritish English
Article number9049083
Pages (from-to)108-120
Number of pages13
JournalIEEE Journal of Biomedical and Health Informatics
Volume25
Issue number1
DOIs
StatePublished - Jan 2021

Keywords

  • deep learning
  • Ophthalmo-logy
  • optical coherence tomography (OCT)
  • Retinopathy

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