Repeatability and Comparability of Retinal Blood Vessel Caliber Measurements by OCTA.

ABSTRACT:

Background

To investigate the repeatability in vessel caliber measurements by optical coherence tomography angiography (OCTA).

Methods

In this prospective study, 28 patients (47 eyes) underwent sequential OCTA imaging of the optic nerve head and macula. Two independent masked graders measured vessel caliber for sequential images of the optic nerve head and macula. The average vessel width was determined and variability between graders and images.

Results

A total of 8400 measurements of 420 vessels from 84 OCTA images were included in the analysis. Overall, inter-grader agreement was excellent (ICC 0.90). The coefficient of variation (CoV) for all repeated OCTA images was 0.10. Greater glaucoma severity, older age, macular location, and diagnosis of diabetes were assoc

SUBMITTER: Tsai J 

PROVIDER: S-EPMC10366731 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature