1 Cardiovascular Imaging, Department of Radiology, University of Wisconsin-Madison, School of Medicine and Public Health, 600 Highland Avenue, Madison, WI 53705, USA. Electronic address: pnagpal@wisc.edu.
2 Department of Radiology, University of Wisconsin-Madison, School of Medicine and Public Health, 600 Highland Avenue, Madison, WI 53705, USA. Electronic address: TGrist@uwhealth.org.