Andrew J. Einstein is Professor of Medicine (in Radiology) at Columbia University, as well as Director Nuclear Cardiology, Cardiac CT, and Cardiac MRI, and program director of the Advanced Cardiac Imaging fellowship. His research, focusing on cardiac imaging and patient safety, has been published in journals such as the New England Journal of Medicine, JAMA, Lancet, BMJ, and European Heart Journal. This work has been influential in affecting clinical practice and has been widely reported in the popular and scientific press. Dr. Einstein's clinical practice includes clinical cardiology and multimodality cardiovascular imaging with CT, MRI, PET, and SPECT. He serves as a consultant to the International Atomic Energy Agency, as a member of the US National Council on Radiation Protection, and as a member of the US Nuclear Regulatory Commission's Advisory Committee on the Medical Uses of Isotopes.