From the Departments of Medical Imaging (V.K.K.
V.P., A.K., D.P.D.), Cardiology (A.T.Y., K.C., A.P.), Laboratory Medicine, Division of Pathology (R.P., C.S.S.), and Cardiovascular and Thoracic Surgery (S.J.H., D.A.L.), St. Michael's Hospital, University of Toronto, Ontario, Canada. DevaD@smh.ca.