Dr Sabharwal is a consultant cardiologist with a subspecialty interest in cardiovascular imaging (echocardiography, nuclear cardiology and cardiac CT). Cardiovascular imaging plays an essential role in the successful diagnosis and subsequent treatment of a wide range of heart disorders, including coronary artery disease, valve disease and heart failure. Dr Sabharwal is also head of the Nuclear Cardiology Department at the John Radcliffe Hospital. He and another cardiology consultant perform nuclear cardiology tests on over 2000 patients every year.