[1] Univ Minnesota, Dept Surg, Div Cardiovasc & Thorac Surg, Minneapolis, MN USA
[2] Univ Minnesota, Dept Radiol Cardiac MRI, Minneapolis, MN 55455 USA
[3] Univ Minnesota, Stem Cell Inst, Minneapolis, MN USA
[4] Univ Minnesota, Dept Vet Diagnost Med, Minneapolis, MN 55455 USA
[5] Johns Hopkins Univ, Dept Radiol, Sch Med, Baltimore, MD 21218 USA
[6] Univ Minnesota, Dept Surg, Expt Surg Serv, Minneapolis, MN 55455 USA
[7] Univ Minnesota, Dept Vet Diagnost Med, Minneapolis, MN 55455 USA