[1] Stanford Univ, Sch Med, Dept Med, Div Cardiovasc Med, Stanford, CA 94305 USA
[2] Stanford Univ, Sch Med, Dept Radiol, Mol Imaging Program, Stanford, CA 94305 USA
[3] Stanford Univ, Sch Med, Dept Cardiothorac Surg, Stanford, CA 94305 USA
[4] Stanford Univ, Sch Med, Dept Pediat, Stanford, CA 94305 USA
[5] Stanford Univ, Sch Med, Dept Radiat Oncol, Stanford, CA 94305 USA
[6] Stanford Univ, Sch Med, Cardiovasc Inst, Stanford, CA 94305 USA