P4‐291: BASELINE FLORBETAPIR AMYLOID PET STANDARD UPTAKE VALUE RATIO (SUVR) CAN PREDICT CLINICAL PROGRESSION IN PRODROMAL AD. (1st July 2006) - Dhadda, Shobha; Swanson, Chad J.; Scott, David; Zhang, Yong; Zhao, Jim; Wang, Jinping; Luthman, Johan; Kramer, Lynn Darden