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An Update on Choroidal Layer Segmentation Methods in Optical Coherence Tomography Images: A Review Publisher



Eghtedar RA1 ; Esmaeili M1 ; Peyman A2 ; Akhlaghi M2 ; Rasta SH1, 3, 4
Authors
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Authors Affiliations
  1. 1. Department of Medical Bioengineering, School of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
  2. 2. Department of Ophthalmology, Isfahan University of Medical Sciences, Isfahan, Iran
  3. 3. Department of Medical Physics, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
  4. 4. Department of Bio-medical Physics, School of Medical Sciences, University of Aberdeen, Aberdeen, United Kingdom

Source: Journal of Biomedical Physics and Engineering Published:2022


Abstract

Choroid is one of the structural layers, playing a significant role in physiology of the eye and lying between the sclera and the retina. The segmentation of this layer could guide ophthalmologists in diagnosing most of the eye pathologies such as choroidal tumors and polypoidal choroidal vasculopathy. High signal-to-noise ratio and high speed imaging in Spectral-Domain Optical Coherence Tomography (SD-OCT) make choroidal imaging feasible. Several variables such as pre-operative axial length (AXL), time of day and age affect thickness of the choroidal vascularization and should be considered for segmentation of this layer. These days most of the eye specialists manually segment the choroidal layer which is time-consuming, tiresome and dependent on human errors. To overcome these difficulties, some studies have introduced different automatic choroidal segmentation methods. In this paper, we have conducted a comprehensive review on existing recently published methods for automatic choroidal segmentation algorithms. © 2022, Shriaz University of Medical Sciences. All rights reserved.
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