Need for manual segmentation in optical coherence tomography angiography of neovascular age-related macular degeneration.

ABSTRACT:

Purpose

To compare the characteristics of eyes that had manual vs. automated segmentation of choroidal neovascular membrane (CNVM) using optical coherence tomography angiography (OCTA).

Methods

All patients with CNVM underwent OCTA using the Zeiss Angioplex Cirrus 5000. Slabs of the avascular outer retina, outer retina to choriocapillaris (ORCC) region and choriocapillaris were generated. Manual segmentation was done when there were significant segmentation artifacts. Presence of activity of CNVM was adjudged by the presence of subretinal fluid (SRF) on structural OCT and was compared to activity detected on en face OCTA slabs based on well-defined criteria.

Results

Eighty-one eyes of 81 patients were recruited of which manual segmentation was required in 46 (57%). Ey

SUBMITTER: Dabir S 

PROVIDER: S-EPMC7775057 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature