J Seibert1 *, M Giger2 *, D Low3 *, M Herman4 *, P Halvorsen5 *, (1) UC Davis Medical Center, Sacramento, CA, (2) Univ Chicago, Chicago, IL, (3) Washington University, Saint Louis, MO, (4) Mayo Clinic, Rochester, MN, (5) Alliance Imaging/Alliance Oncology, Newton, MA