Quantitative assessment of retinopathy using multi-parameter image analysis

Autor: Zahra Ghanian, Kevin Staniszewski, Nasim Jamali, Reyhaneh Sepehr, Shoujian Wang, Christine M Sorenson, Nader Sheibani, Mahsa Ranji
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Journal of Medical Signals and Sensors, Vol 6, Iss 2, Pp 71-80 (2016)
Druh dokumentu: article
ISSN: 2228-7477
Popis: A multi-parameter quantification method was implemented to quantify retinal vascular injuries in microscopic images of clinically relevant eye diseases. This method was applied to wholemount retinal trypsin digest images of diabetic Akita/+, and bcl-2 knocked out mice models. Five unique features of retinal vasculature were extracted to monitor early structural changes and retinopathy, as well as quantifying the disease progression. Our approach was validated through simulations of retinal images. Results showed fewer number of cells (P = 5.1205e-05), greater population ratios of endothelial cells to pericytes (PCs) (P = 5.1772e-04; an indicator of PC loss), higher fractal dimension (P = 8.2202e-05), smaller vessel coverage (P = 1.4214e-05), and greater number of acellular capillaries (P = 7.0414e-04) for diabetic retina as compared to normal retina. Quantification using the present method would be helpful in evaluating physiological and pathological retinopathy in a high-throughput and reproducible manner.
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