Exploring choroidal angioarchitecture in health and disease using choroidal vascularity index

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Abstract

The choroid is one of the most vascularized structures of the human body and plays an irreplaceable role in nourishing photoreceptors. As such, choroidal dysfunction is implicated in a multitude of ocular diseases. Studying the choroid can lead to a better understanding of disease pathogenesis, progression and discovery of novel management strategies. However, current research has produced inconsistent findings, partly due to the physical inaccessibility of the choroid and the lack of reliable biomarkers. With the advancements in optical coherence tomography technology, our group has developed a novel quantitative imaging biomarker known as the choroidal vascularity index (CVI), defined as the ratio of vascular area to the total choroidal area. CVI is a potential tool in establishing early diagnoses, monitoring disease progression and prognosticating patients. CVI has been reported in existing literature as a robust marker in numerous retinal and choroidal diseases. In this review, we will discuss the current role of CVI with reference to existing literature, and make postulations about its potential and future applications.

Original languageEnglish
Article number100829
JournalProgress in Retinal and Eye Research
Volume77
DOIs
StatePublished - Jul 2020

Keywords

  • Age related macular degeneration
  • Artificial intelligence
  • Choroid
  • Choroidal vascularity index
  • Optical coherence tomography
  • Uveitis

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