Shahreen Ahmad
Consultant clinical oncologist
Biography
Shahreen Ahmad is a consultant clinical oncologist who qualified from University College London. Her research focused on using medical imaging to better understand how lung tumours move and how this can improve radiotherapy treatment.
She specialises in treating lung cancer using radiotherapy and drug treatments. In 2009, she introduced stereotactic ablative radiotherapy (SABR), a highly targeted type of radiotherapy, at Guy's and St Thomas'.
She also treats cancers that have spread to other parts of the body using SABR and is a core member of the Trust's SABR service.
Working with cardiology colleagues, she established the Cardiac SABR service at Guy's and St Thomas'. Since 2021, she has treated patients with ventricular tachycardia, a serious heart rhythm condition, using this innovative treatment.
Education and training
- Member of the Royal Colleges of Physicians (MRCP)
- Fellow of the Royal College of Radiologists (FRCR)
- Doctor of Medicine (Research) (MD(Res))
Research interests
- UK Chief Investigator for the RADIATE VT trial, which is comparing stereotactic ablative radiotherapy (SABR) with catheter ablation for the treatment of ventricular tachycardia.
Publications
Co-author of Practical Radiotherapy Planning, a leading radiotherapy textbook (5th edition).
Last updated: September 2026