He was one of the initiators of stress echocardiography, and has made contributions to the prognostic evidence underlying cardiovascular imaging. Over the last 20 years, he has been one of the main proponents of direct measurement of myocardial deformation (strain), and his current interests in that topic relate to shear-wave imaging using high-frequency ultrasound. This fits his ongoing research interests in the detection of early cardiovascular disease and cost-effective application of cardiac imaging techniques for treatment selection and monitoring. Access to cardiac imaging is a cornerstone of current cardiology, and Tom is also working on AI methods to acquire and interpret images remotely, including the development of robotics.
He has published over 1000 papers, reviews, chapters and editorials, and is an Associate Editor at JACC and Deputy Editor at JACC-Cardiovascular Imaging. Dr Marwick has been the recipient of more than fifty significant research grants and several awards, including the Simon Dack Award from the American College of Cardiology, 2009 and the RT Hall Prize (2006) and Kempson Maddox Lecture (2011) of the Cardiac Society of Australia and New Zealand. In 2024, the American College of Cardiology awarded Tom the Distinguished Mentor Award in recognition of his contribution has been in clinical research training. Tom has supervised almost 50 RHD students, and has over 40 completions (35 of these PhD).