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Detection of Choroidal Neovascular Membrane Beneath Pigment Epithelial Detachment Using SD-OCTA
Background And Objective:
To identify choroidal neovascular membrane (CNVM) associated with spectral-domain optical coherence tomography (SD-OCT)-defined pigment epithelial detachment (PED) using SD-OCT angiography (SD-OCTA).
Patients And Methods:
Sixty-nine patients with same-day OCT and OCTA imaging were reviewed, and 41 eyes of 29 patients with PEDs were included. OCTs were analyzed for PED type, fluid, and subretinal hyperreflective material (SHRM).
Results:
Twenty-seven eyes (66%) demonstrated CNVM on OCTA beneath all subtypes of PED. Twenty-two eyes (75.9%) with fluid or SHRM demonstrated CNVM on OCTA (P = .036). Fluid corresponded in a statistically significant manner with treatment (P = .0032), whereas SHRM did not (P = .613). OCTA-defined CNVM showed borderline statistically significant correlation to treatment (P = .05). Increased choroidal flow signal seen in 50% of eyes did not demonstrate statistically significant correlation to the presence of fluid on SD-OCT (P = .2798) or treatment decision (P = .678). A subset of 14 untreated eyes with CNVM was analyzed, 21% of which required treatment at subsequent visits.
Conclusions:
OCTA-defined CNVM was seen in all subtypes of PED in clinically active and inactive disease. The role of OCTA in predicting need for treatment remains to be established. [Ophthalmic Surg Lasers Imaging Retina. 2019;50:620-626.].
