1. Repeatability and reproducibility of vessel density measurements on optical coherence tomography angiography in diabetic retinopathy

    Repeatability and reproducibility of vessel density measurements on optical coherence tomography angiography in diabetic retinopathy

    Purpose Understanding the precision of measurements on and across optical coherence tomography angiography (OCTA) devices is critical for tracking meaningful change in disease. The purpose of this study is to investigate the repeatability and reproducibility of vessel area density and vessel skeleton density measurements from various commercial OCTA devices in diabetic eyes. Methods Patients were imaged three consecutive times each on three different OCTA devices. En face OCTA images of the superficial capillary plexus, deep capillary plexus, and full retinal layer were exported for analysis. Vessel area density and vessel skeleton density were calculated. The coefficient of repeatability (CoR) was ...

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