A#2648 PET for GCA Delayed imaging at 180 min improve dx performance for pts on GCs Optimal PET w/in 3 days of GC, most patients unable to do w/in that window Delay has sensitivity 92% even on prednisone - may be good tool for pts unable to get early PET/CT #ACR24 @RheumNow https://t.co/kxpNfRqkGN