1. Articles from Sherif El-Defrawy

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    1. Validation of Optical Coherence Tomography Retinal Segmentation in Neurodegenerative Disease

      Validation of Optical Coherence Tomography Retinal Segmentation in Neurodegenerative Disease

      Purpose : This study assessed agreement between an automated spectral-domain optical coherence tomography (SD-OCT) retinal segmentation software and manually corrected segmentation to validate its use in a prospective clinical study of neurodegenerative diseases (NDD). Methods : The sample comprised 30 subjects with NDD, including vascular cognitive impairment, frontotemporal dementia, Parkinson's disease, and Alzheimer's disease. Macular SD-OCT scans were acquired and segmented using Heidelberg Spectralis. For the central foveal B scan of each eye, eight segmentation lines were examined to determine the proportion of each line that the software erroneously delineated. Errors in four lines were manually corrected in all B ...

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