Background and Objective: Spectral-domain optical coherence tomography (SD-OCT) imaging can be used to visualize polypoidal choroidal vasculopathy (PCV) lesions in the en face plane. Here, the authors describe a novel lesion quantifcation technique and compare PCV lesion area measurements and morphology before and after anti-vascular endothelial growth factor (VEGF) treatment. PATIENTS AND METHODS: Volumetric SD-OCT scans in eyes with PCV before and after induction anti-VEGF therapy were retrospectively analyzed. En face SD-OCT images were generated and a pixel intensity thresholding process was used to quantify total lesion area. RESULTS: Thirteen eyes with PCV were analyzed. En face SD-OCT PCV lesion area quantifcation showed good intergrader reliability (intraclass correlation coeffcient = 0.944). Total PCV lesion area was signifcantly reduced after anti-VEGF therapy (2.22 mm2 vs. 2.73 mm2; P =.02). The overall geographic pattern of the branching vascular network was typically preserved. CONCLUSION: PCV lesion area analysis using en face SD-OCT is a reproducible tool that can quantify treatment related changes.
ASJC Scopus subject areas