[1] Natl Inst Biomed Imaging & Bioengn, Sect High Resolut Opt Imaging, NIH, Bethesda, MD 20892 USA
[2] Univ Maryland, Biophys Program, College Pk, MD 20742 USA
[3] NHLBI, NIH, Bldg 10, Bethesda, MD 20892 USA
[4] NIH, Adv Imaging & Microscopy Resource, Bldg 10, Bethesda, MD 20892 USA
[5] Natl Inst Biomed Imaging & Bioengn, Sect Biophoton, NIH, Bethesda, MD USA
[6] Univ Maryland, Dept Phys, College Pk, MD 20742 USA
[7] Univ Maryland, Inst Phys Sci & Technol, College Pk, MD 20742 USA
[8] Northrop Grumman Corp, Monterey, CA USA