1 From the Department of Radiology, Division of Molecular Imaging and Therapeutics, Weill Cornell Medicine, 1300 York Ave, New York, NY 10065 (K.S., J.I., A.R.F., J.R.O.); Department of Radiation Oncology, Montefiore Medical Center, Bronx, NY (K.S.); and MI4 LLC, Wayne, NJ (M.P.).