1. Articles from Hajnalka Horváth

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    1. The effect of image quality on the reliability of OCT angiography measurements in patients with diabetes

      The effect of image quality on the reliability of OCT angiography measurements in patients with diabetes

      Background This study aimed to determine the relationship between image quality and measurement repeatability of optical coherence tomography angiography (OCTA) parameters in patients with non-proliferative diabetic retinopathy. Methods A total of 100 eyes of 50 patients were included in the study. Three OCTA images were obtained consecutively during one session of imaging in all patients using the RTVue AngioVue OCTA device. We applied the signal strength index (SSI) provided by the RTVue system to define scan quality. Superficial vessel density (VD) in the central 3 × 3 mm macular and in the perifoveal region, as well as foveal avascular zone (FAZ ...

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    2. Choroidal thickness changes in non-treated eyes of patients with diabetes: swept-source optical coherence tomography study

      Choroidal thickness changes in non-treated eyes of patients with diabetes: swept-source optical coherence tomography study

      Aims To measure choroidal thickness (CT) in diabetic eyes and its correlation with metabolic status and the severity of diabetic retinopathy (DR). Materials and methods Prospective cross-sectional study using swept-source optical coherence tomography. CT maps of 96 treatment naïve eyes of 48 patients with diabetes were compared to 46 eyes of 23 healthy controls. CT changes and their relation to diabetes, age, gender, disease duration, hypertension (HT), hemoglobin A1c level, type and severity of DR were evaluated. Results A significantly thinner choroid was measured in patients with diabetes compared to controls ( p  < 0.009). In the diabetic group age ...

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