1Medical Physics, University of Wisconsin at Madison, Madison, WI, United States, 2Morgridge Institute for Research, Madison, WI, United States, 3Laboratory for Optical and Computational Instrumentation, University of Wisconsin at Madison, Madison, WI, United States, 4Cell and Regenerative Biology, University of Wisconsin at Madison, Madison, WI, United States, 5UW Carbone Cancer Center, Madison, WI, United States, 6Mechanical Engineering, University of Wisconsin at Madison, Madison, WI, United States, 7Biomedical Engineering, University of Wisconsin at Madison, Madison, WI, United States, 8Radiology, University of Wisconsin at Madison, Madison, WI, United States