IC‐P‐111: IMPACT OF CEREBRAL ISCHEMIA SCORES, FIBRILLAR AMYLOID‐B BURDEN AND AGE ON WHITE MATTER HYPERINTENSITY VOLUMES IN COGNITIVELY UNIMPAIRED OLDER ADULT APOE4 CARRIERS AND NON‐CARRIERS. (1st July 2019) - Malek-Ahmadi, Michael; Luo, Ji; Methuku, Varshini; Devadas, Vivek; Goradia, Dhruman D.; Su, Yi; Reiman, Eric M.