1. Center for In Vivo Microscopy; Duke University Medical Center; Durham NC 27710 USA
2. Department of Biomedical Engineering; Duke University; Durham NC 27708 USA
3. Medical Physics Graduate Program; Duke University; Durham NC 27705 USA
4. School of Medicine; Duke University; Durham NC 27710 USA
5. Department of Electrical and Computer Engineering; Duke University; Durham NC 27708 USA
6. Division of Cardiology; Duke University Medical Center; Durham NC 27710 USA
7. Department of Medicine; Division of Pulmonary, Allergy and Critical Care; Duke University Medical Center; Durham NC 27710 USA
8. Gilead Sciences; Foster City CA 94404 USA
9. Department of Radiology; Duke University Medical Center; Durham NC 27710 USA