Exploring choroidal angioarchitecture in health and disease using choroidal vascularity index. (July 2020)

• Record Type: Journal Article
• Authors: Agrawal, Rupesh; Ding, Jianbin; Sen, Parveen; Rousselot, Andres; Chan, Amy; Nivison-Smith, Lisa; Wei, Xin; Mahajan, Sarakshi; Kim, Ramasamy; Mishra, Chitaranjan; Agarwal, Manisha; Suh, Min Hee; Luthra, Saurabh; Munk, Marion R.; Cheung, Carol Y.; Gupta, Vishali
• Is Part Of: Progress in retinal and eye research. Volume 77(2020:Jul.)
• Publication Date: 2020-07
• Subjects: Choroidal vascularity index -- Choroid -- Optical coherence tomography -- Uveitis -- Age related macular degeneration -- Artificial intelligence; Retina -- Periodicals; Retina -- Research -- Methodology -- Periodicals; Eye -- Diseases -- Periodicals; Eye -- Periodicals; Eye Diseases -- Periodicals; Retina -- Periodicals; Rétine -- Périodiques; Rétine -- Recherche -- Méthodologie -- Périodiques; 617.7005
• DOI: 10.1016/j.preteyeres.2020.100829
• Languages: English
• ISSNs: 1350-9462

Abstract

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. Highlights: CVI is a biomarker that quantifies choroidal vascular alterations. CVI has been analysed in systemic and ocular diseases and post-operative states. This article will discuss the past, present, and future of CVI. CVI has significant potential as a clinical parameter. Online portal for automated CVI analysis in bulk has been established.