1. Departments of Radiology and Medicine, Columbia University, New York, New York 10032
2. Vascular Access Center West Orange, West Orange, New Jersey 07052
3. Interventional Radiology, University of Pennsylvania Medical Center, Philadelphia, Pennsylvania 19104
4. CRF‐Skirball Center for Innovation, Columbia University Medical Center, New York, New York 10032
5. ControlRad Systems, Ltd., Kfar Saba, Israel
6. Interventional Cardiology, Mt. Sinai Medical Center, New York, New York 10029