Dr. John J. Mahmarian, Director of Nuclear Cardiology and Computed Tomography (CT) Services at the Methodist DeBakey Heart and Vascular Center, is recognized nationally and internationally as an authority in nuclear cardiology and cardiac CT imaging.

He balances his time between research and an active clinical practice. Dr. Mahmarian’s research addresses how to tailor therapy, reduce healthcare costs and improve treatment of heart disease using nuclear imaging, including myocardial perfusion imaging, cardiac CT, hybrid imaging and calcium scoring. He has written extensively on myocardial perfusion imaging, and CT angiography. His clinical focus is on prevention of heart disease, acute coronary syndromes and myocardial infarction.