1 University of Maryland Medical Intelligent Imaging (UM2ii) Center, Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, 22 S Greene St, Baltimore, MD 21201.
2 The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Md.
3 Radiology and Imaging Sciences Clinical Center, National Institutes of Health (NIH), Bethesda, Md.
4 Malone Center for Engineering in Healthcare, Whiting School of Engineering, Johns Hopkins University, Baltimore, Md.
5 Fischell Department of Bioengineering, A. James Clark School of Engineering, University of Maryland, College Park, College Park, Md.