1 Division of Engineering, Mayo Clinic, Rochester, MN, USA.
2 Department of Radiology, Mayo Clinic, Rochester, MN, USA; Mayo Clinic College of Medicine, Mayo Clinic, Rochester, MN, USA.
3 Mayo Clinic College of Medicine, Mayo Clinic, Rochester, MN, USA; Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA. Electronic address: dragomirdaescu.dan@mayo.edu.