Correspondence to: Allan L. Klein, MD, Director of the Center for the Diagnosis and Treatment of Pericardial Disease, Section of Cardiovascular Imaging, Department of Cardiovascular Medicine, Desk J1-5, Heart, Vascular and Thoracic Institute, 9500 Euclid Ave, Cleveland, OH 44195. Email

E-mail Address: [email protected]

https://orcid.org/0000-0001-9240-8369

Center for the Diagnosis and Treatment of Pericardial Diseases, Section of Cardiovascular Imaging, Department of Cardiovascular Medicine, Heart, Vascular, and Thoracic Institute, Cleveland Clinic, Cleveland, OH (T.D., R.V., R.R., D.H.K., S.H., T.K.M.W., A.L.K.).