[IC‐P‐138]: CORTICAL THINNING PATTERN IN AUTOSOMAL DOMINANT AD PREDICTS AMYLOID POSITIVITY IN SPORADIC AD. (1st July 2017) - Hari‐Raj, Amrita; Dincer, Aylin; Gordon, Brian A.; Su, Yi; Ances, Beau M.; Morris, John C.; Bateman, Randall J.; Benzinger, Tammie L.S.