Institution: | ∗ Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA;† Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA;‡ Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, USA;§ Department of Radiology, University of Michigan, Ann Arbor, MI, USA;‖ Epsilon Imaging, Inc., Ann Arbor, MI, USA;¶ Veteran''s Administration Hospital, Ann Arbor, Michigan |