1. From the Departments of Physics and Astronomy (S.S.), Radiology (S.D.C., P.K.), Urologic Sciences (S.D.C., R.S., S.L.G., P.C.B., P.K.), and Pathology and Laboratory Medicine (E.C.J.), University of British Columbia, 2329 West Mall, Vancouver, BC, Canada V6T 1Z4; UBC MRI Research Centre, Vancouver, BC, Canada (J.Z., P.K.); and Vancouver Prostate Centre, Vancouver, BC, Canada (S.D.C., S.L.G., P.C.B., P.K.).