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

Autor: Reza Alizadeh Eghtedar, Mahdad Esmaeili, Alireza Peyman, Mohammadreza Akhlaghi, Seyed Hossein Rasta
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Journal of Biomedical Physics and Engineering, Vol 12, Iss 1, Pp 1-20 (2022)
Druh dokumentu: article
ISSN: 2251-7200
DOI: 10.31661/jbpe.v0i0.1234
Popis: 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.
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