Ronak Rajani


Consultant cardiologist, valve disease and cardiac imaging


Ronak Rajani is a consultant cardiologist in heart valve disease and Professor of Cardiovascular Imaging with King's College London.

He has a specialist interest in monitoring and managing patients with heart valve disease and runs specialist clinics for patients with mitral valve disease who are high-risk for surgical repair or replacement. Ronak also has experience in heart failure and inherited cardiac conditions.

He is currently the cardiology lead for cardiac computed tomography and the non-structural heart valve clinic at Guy's and St Thomas' Hospital. Ronak also serves as the NIHR speciality group lead for cardiovascular services across south London and is the representative for the Royal College of Physicians and the British Cardiovascular Society for south east London. He also sits on the clinical advisory group for specialised commissioning of cardiac services with NHS England.

Ronak was a recipient of the British Cardiovascular Society/American College of Cardiology Fellowship in Advanced Cardiac Imaging and received his training in cardiac MRI and nuclear cardiology at the Royal Brompton Hospital in London and training in cardiac CT and PET imaging at the Cedars-Sinai Medical Centre in Los Angeles.

He has accredited training in cardiac CT (SCCT and EAVCI Level III), nuclear cardiology (Level II), cardiac MRI (Level II) and is trained in all aspects of advanced echocardiography (stress echo and transoesophageal echo).

He completed his echocardiography based MD thesis in 2006 and has published over 180 manuscripts in the field of cardiac imaging. He maintains an active interest in research, and is particularly interested in the modern applications of cardiac CT in predicting cardiac risk and for cardiac structural and electrophysiology interventions. Ronak is currently the principal investigator at St Thomas' Hospital for the EVOLVED AS trial, RAPID CTA trial and Medtronic Intrepid trial and serves as a co-investigator on a number of additional trials. He supervises a number of PhD students and holds collaborative research grants with his colleagues at King's College London. He is a recognised key opinion leader for cardiac CT in the UK and is a regular invited speaker nationally and internationally.

Ronak has also contributed a number of book chapters to medical textbooks. He sits on the international sub-committee and abstract grading committee of the Society of Cardiovascular Computed Tomography and is an advisory editor for Clinical Radiology and a section editor on Cardiovascular Imaging for EuroIntervention. Ronak is a Fellow of the Society of Cardiovascular Computed Tomography (FSCCT), the European Society of Cardiology (FESC), the Royal College of Physicians (FRCP) and the American College of Cardiology (FACC) and sits on the EAVCI cardiac CT examination writing committee.

Ronak is particularly interested in teaching and founded the SCCT endorsed London International CT Academy and is the course director. This has since become one of the largest training academies of its kind in Europe. In 2017, he created the world's first online training course for cardiac CT with a professional medical education company based in Austria.

In addition to lecturing nationally and internationally on aspects of cardiac imaging, he has devised a model for clinical attachments in the UK and accepts elective medical students and postgraduate students from all over the world.

Research interests

  • Cardiovascular risk prediction using cardiac computed tomography
  • Computational fluid dynamics
  • Cardiac computed tomography for electrophysiology applications
  • Bioengineering
  • Cardiac computed tomography for structural intervention planning

Last updated: September 2022

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