[P4–249]: TAU BURDEN CORRELATES WITH LONGITUDINAL STRUCTURAL CHANGE IN REGIONS AFFECTED BY EARLIEST NEUROFIBRILLARY TANGLE PATHOLOGY IN AMYLOID‐β‐POSITIVE ADNI SUBJECTS. (1st July 2017) - Xie, Long; Das, Sandhitsu R.; Wisse, Laura E.M.; Ittyerah, Ranjit; Yushkevich, Paul A.; Wolk, David A.