Evaluation of The Chorioretinal Thickness in Patients with Internal Carotid Artery Stenosis Using Spectral-Domain Optical Coherence Tomography

İnternal Karotis Arter Tıkanıklığı Olan Hastalarda Spektral Domain Optik Koherens Tomografi Kullanılarak Korioretinal Kalınlığın Değerlendirilmesi

Raif Umut AYOĞLU, Devrim TOSLAK, İclal ERDEM TOSLAK, Mehmet BULUT, Muhammet Kazım EROL

Abstract

Purpose: To assess the chorioretinal thickness using spectral-domain optical coherence tomography (SD-OCT ) in patients with internalcarotid artery (ICA) stenosis.Materials and Methods: Twenty-one consecutive subjects (14 male and 7 female) with an age range of 51-85 years who had ICA stenosis(with ≥40% ICA stenosis on one side and less than 40% stenosis on the other side ) were included in our study. 21 eyes with ≥40%ipsilateral ICA stenosis as the patient group and 21 eyes with less than 40% ipsilateral ICA stenosis as the control group of 21 subjectswere included in the study. Choroidal thicknesses (CT) were measured at eleven locations: the fovea, 500-1500-3000μm temporal to thefovea, 500-1500-3000μm nasal to the fovea, 1000-2000μm superior to the fovea, and 1000-2000μm inferior to the fovea by enhanced depthimaging optical coherence tomography (EDI-OCT). The correlation between CT values and ipsilateral ICA stenosis ratios was explored.Results: Except at 3000μm temporal and 1000μm inferior, all CT measurements at other nine localizations were signifi cantly decreased inthe patient group as compared to the control group (p40% carotid artery stenosis as compared to the fellow eyes with

Özet

Amaç: İnternal karotis arter (İKA) tıkanıklığı olan hastalarda, spektral domain optik koherens tomografi (SD-OKT) kullanılarak, koriore- tinal kalınlık değişikliklerinin değerlendirilmesi. Gereç ve Yöntemler: Bizim çalışmamıza, bir taraf İKA arterlerinde ≥% 40 ve diğer tarafta