Oliver is an Associate Professor at the University of Oxford and the Deputy Clinical Director of the Oxford Centre for Magnetic Resonance (OCMR). Oliver has an extensive background in the obesity field: he used magnetic resonance imaging and spectroscopy to study the effects of obesity and weight loss on myocardial metabolism and function. Now, he uses advanced cardiac MRI and spectroscopy to investigate the relationship between cardiac substrate metabolism, cardiac energetics and cardiac function in multiple disease areas.