ABSTRACT
PURPOSE: To compare optical coherence tomography angiography (OCTA) and indocyanine green angiography (ICGA) findings in polypoidal choroidal vasculopathy (PCV) according to polyp type, polyp size and pigment epithelial detachment (PED) size. METHOD: Seventeen patients with PCV were included this study. The participants were divided into two groups according to ICGA images. Participants who had type I PCV formed group 1, and group 2 was comprised of patients with type II PCV. OCTA was performed for all participants. Polyp detection rates with OCTA and factors affecting this detection were assessed. RESULTS: The mean age of all patients was 68.85±4.77 years (group 1 70.4±2.54 years, group 2 67.45±5.93 years). The rate of polyps seen in OCTA images was statistically significantly correlated with polyp type, polyp size, and PED size (r=0.633, p=0.002; r=0.64, P=0.001 and r=0.59, p<0.001, respectively). In group 1, the mean polyp size was 230.8±82.94µm, and the mean PED size was 161.3±73.87µm. In group 1, 10 patients with PCV were detected with ICGA, while only 1 (10%) PCV was detected with OCTA. In group 2, the mean polyp size was 387.90±245.90µm, and the mean PED size was 345.18±276.26µm. In group 2, 11 patients with PCV were detected with ICGA, while 8 (72.7%) of these patients were detected using OCTA. CONCLUSIONS: OCTA showed a greater percentage of detection of type II PCV than type I PCV. Polyp and PED size are important for the detection of PCV using OCTA.
