We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Reliability of foveal avascular zone measurements in eyes with retinal vein occlusion using optical coherence tomography angiography.
- Authors
de Oliveira, Bruno Mauricio Rodrigues; Nakayama, Luis Filipe; de Godoy, Bruno Rebello; de Azevedo, Alexandre Gomes Bortoloti; Hirai, Flavio Eduardo; Mitne, Somaia
- Abstract
Background: To evaluate the reliability of foveal avascular zone (FAZ) area measurements using optical coherence tomography angiography (OCTA) in eyes with retinal vein occlusion (RVO). Methods: Twenty-five OCTA exams of patients with RVO were evaluated retrospectively. Three examiners performed manual measurements of the FAZ, and interrater and intrarater reliability were obtained. Results: The intraclass correlation coefficient (ICC) for interrater reliability for individual measurements was 0.62 (moderate) with a 95% confidence interval (CI) of 0.40 to 0.79 (p < 0.001). The ICC (95% CI) for intrarater reliability was 0.92 (0.82 to 0.96) for rater A, 0.96 (0.91 to 0.98) for B, and 0.88 (0.76 to 0.94) for C (p < 0.001). In all subanalyses including presence of edema and type of occlusion, interrater reliability was poor/moderate, and intrarater reliability was good/excellent. Conclusion: The FAZ varies significantly among eyes with RVO, so measurements obtained using OCTA should be analyzed with caution due to the moderate level of reliability among different examiners.
- Publication
International Journal of Retina & Vitreous, 2020, Vol 6, Issue 1, p1
- ISSN
2056-9920
- Publication type
Article
- DOI
10.1186/s40942-020-00237-w