Optical coherence tomography angiography characteristics of polypoidal choroidal vasculopathy
Mayer Srour1, Giuseppe Querques1, Oudy Semoun1
1Department of Ophthalmology, Centre Hospitalier Intercommunal de Créteil, Université de Paris Est Créteil, Créteil, France.
Purpose:
To analyse the morphological characteristics of polypoidal choroidal vasculopathy (PCV) on optical coherence tomography angiography (OCT-A).
Methods:
Prospective study with consecutive patients affected with PCV were included. All patients underwent a complete ophthalmological examination including fundus photography, fluorescein angiography, indocyanine green angiography, spectral-domain OCT and OCT-A.
Results:
Twelve eyes of 12 patients (mean age 72.6±10.5 years; 4 men and 8 women) were included for analysis. In all eyes (12/12) the segmentation of the choriocapillaris layer on OCT-A revealed the branching vascular network (BVN) as a hyperflow lesion. OCT-A segmentation of the choriocapillaris layer in correspondence of the polypoidal lesion showed in 3/12 eyes (25%) a hyperflow round structure, surrounded by a hypointense halo, and in 9/12 eyes (75%) a hypoflow round structure.
Conclusions:
The OCT-A is a non-invasive imaging modality allowing the visualisation of different structures in PCV. The BVN is constantly clearly detected. The hypoflow round structure appearance of the polyp in OCT-A, is probably due to an unusual blood flow inside the polypoidal lesions, contrasting with the BVN. Further improvement in OCT-A knowledge will provide information on the specificity of the different intensity characteristics in PCV.
More Related Videos
05:14Author Spotlight: Overcoming Anti-VEGF Resistance Through Advanced Vascular Morphology Assessment in Choroidal Neovascularization
Published on: August 11, 2023
07:18Evaluation of Capillary and Other Vessel Contribution to Macular Perfusion Density Measured with Optical Coherence Tomography Angiography
Published on: February 18, 2022
