1. From the Center for Intelligent Imaging, Department of Radiology & Biomedical Imaging (B.K.K.F., E.C., J.M., S.C., C.P.H., L.P.S., T.L.L., J.E.V.M., A.M.R., J.D.R.), and Division of Neuro-Oncology, Department of Neurologic Surgery (S.M.C.), University of California San Francisco, 513 Parnassus Ave, Suite S-261D, Box 0628, San Francisco, CA 94143.