1. The Edwards Lifesciences Center for Advanced Cardiovascular Technology, University of California, Irvine, Irvine, CA 92697, USA
2. Center for Pervasive Communications & Computing, University of California, Irvine, Irvine, CA 92697, USA
3. Division of Cardiac Surgery, Department of Surgery, Thomas Jefferson University, Philadelphia, PA 19107, USA
4. Department of Radiological Sciences, David Geffen School of Medicine, UCLA, Los Angeles, CA 90095, USA