A Reliable Criterion for the Correct Delimitation of the Foveal Avascular Zone in Diabetic Patients.

ABSTRACT:

Background

Manual segmentation of the Foveal Avascular Zone (FAZ) has a high level of variability. Research into retinas needs coherent segmentation sets with low variability.

Methods

Retinal optical coherence tomography angiography (OCTA) images from type-1 diabetes mellitus (DM1), type-2 diabetes mellitus (DM2) and healthy patients were included. Superficial (SCP) and deep (DCP) capillary plexus FAZs were manually segmented by different observers. After comparing the results, a new criterion was established to reduce variability in the segmentations. The FAZ area and acircularity were also studied.

Results

The new segmentation criterion produces smaller areas (closer to the real FAZ) with lower variability than the different criteria of the explorers in both plexuse

SUBMITTER: Fernandez-Espinosa G 

PROVIDER: S-EPMC10223277 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature