[1] Massachusetts Gen Hosp, Cardiac MR PET CT Program, Div Cardiol, Boston, MA 02114 USA
[2] Massachusetts Gen Hosp, Cardiovasc Res Ctr, Dept Med, Boston, MA 02114 USA
[3] Massachusetts Gen Hosp, Ctr Mol Imaging Res, Boston, MA 02114 USA
[4] Massachusetts Gen Hosp, Dept Imaging, Boston, MA 02114 USA