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Abstract #1709

Widespread effect of age related macular degeneration on brain structural integrity.

Jacques Andrew Stout1, Robert BJ Anderson2, Simon Wilton Davis3, Jie Zhuang3,4, David Dunson5,6, Heather Elisabeth Whitson7, and Alexandra Badea1,2,3
1BIAC, Duke School of Medicine, Durham, NC, United States, 2Duke Radiology, Duke School of Medicine, Durham, NC, United States, 3Duke Neurology, Duke School of Medicine, Durham, NC, United States, 4School of Psychology, Shanghai University of Sport, Shanghai, China, 5Statistics, Duke University, Durham, NC, United States, 6Trinity College of Arts & Sciences, Duke University, Durham, NC, United States, 7Geriatrics, Duke School of Medicine, Durham, NC, United States

Age-related macular degeneration (AMD) has been associated with brain degeneration, particularly in the cortical regions of the brain. Our study involved the comparison of subjects with AMD to subjects, with both an initial scan at the beginning of the study, and a secondary one two years later. Using anatomical and diffusion acquisitions, we ascertained that there was a marked decrease in cortical volumetry and fractional anisotropy (FA), and that it evolved very rapidly in the case of FA. A PCA run on the connectivity matrices also identified the connections that were most affected.

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