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Dr Tarun K Mittal is a cardiac radiologist who underwent training in all cardiac imaging modalities (including vascular imaging) initially for two years at University Hospital of Wales at Cardiff followed by a one-year post-CCST fellowship in cardiac imaging at the Yorkshire Heart Centre, Leeds.

Dr Mittal has led the development of both cardiac MRI and CT services at Harefield Hospital since 2001.

Areas of expertise 

Dr Mittal has a particular interest in CT and MRI of the heart and the vascular system.

Research interests

Dr Mittal is involved in various research projects with primary areas involving risk assessment with coronary artery calcification, imaging of coronary heart disease, heart failure, heart and lung transplantation, and ventricular assist devices. 

He has recently completed and published a large study evaluating the accuracy of CT coronary angiography in patients with heart transplant compared to catheter angiography.


Dr Mittal teaches and trains both radiologists and cardiologists in cardiac CT and MR from various hospitals within the UK as well as abroad. He is the Royal College of Radiologist’s tutor in cardiac imaging at Harefield Hospital.  

Since 2004, he has organised the annual Harefield cardiac CT course, which is well attended by radiologists, cardiologists, and radiographers from all over the UK and abroad.

International work

He is a founding member of both Society of Cardiovascular Magnetic Resonance (SCMR) and Society of Cardiovascular CT (SCCT) and attends various international meetings to present research work as well as an invited lecturer at various international meetings.


Dr Mittal was the lead for cardiac imaging guidelines for the Royal College of Radiologists in the latest edition of Making the Best Use of a Department of Clinical Radiology. Locally, he is the chairman of the Radiation Protection Committee at Harefield Hospital.

Read more about the latest cardiac CT course.

Private patient referral 

If you would like to make an appointment with this specialist for private care, contact the RB&HH Specialist care team