1. From the Department of Diagnostic Radiology, University Hospital, Technical University Aachen, Aachen, Germany (E.S., K.M.R., A.B., G.A.K., R.W.G.); Department of Radiology, University of Cologne, Cologne, Germany (E.S.); Department of Nuclear Medicine, Technical University Munich, Munich, Germany (R.M.B.); Philips Medical Systems, Best, the Netherlands (A.J.W.); EPIX Pharmaceuticals, Lexington, Mass (V.J., M.T.G.); and Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General...