1 Division of Nuclear Medicine & Clinical Molecular Imaging, Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA. Electronic address: Jose.Rodriguez2@pennmedicine.upenn.edu.
2 Division of Rheumatology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA. Electronic address: kmdsilva@bwh.harvard.edu.
3 Division of Rheumatology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA. Electronic address: MKOHLER@mgh.harvard.edu.
4 Division of Cardiovascular Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA. Electronic address: bghoshhajra@mgh.harvard.edu.
5 Division of Cardiovascular Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA. Electronic address: Hedgire.Sandeep@mgh.harvard.edu.