1 Department of Radiology, Division of Abdominal Imaging, Michigan Medicine, University of Michigan, University Hospital B1 D502, 1500 East Medical Center Drive, Ann Arbor, MI 48109, USA. Electronic address: erst@med.umich.edu.
2 Department of Radiology, Division of Abdominal Imaging, Michigan Medicine, University of Michigan, University Hospital B1 D502, 1500 East Medical Center Drive, Ann Arbor, MI 48109, USA. Electronic address: kshampai@med.umich.edu.