Leading consultant interventional neuroradiologist (INR) based at the renowned Atkinson Morley Neurosciences Centre at St George’s Hospital in London.

Clinical interests

Dr Madigan specialises in the diagnosis and treatment of blood vessel disorders of the brain and spine. This includes aneurysms, arteriovenous malformations (AVM), dural arteriovenous fistulae (dAVF), vasospasm following subarachnoid haemorrhage and acute ischaemic stroke (mechanical thrombectomy).

He has experience in all aspects of adult diagnostic and interventional neuroradiology, but specific diagnostic interests include neurovascular disease and dementia.

Professional profile

Dr Madigan undertook his undergraduate training at the University of Otago, New Zealand. He attained a BSc in Chemistry in 1996 before training in medicine and qualifying with an MBChB in 2001. He moved to London in 2003 where he trained in clinical radiology at St George’s Hospital, gaining Fellowship of the Royal College of Radiologists in 2007. Between 2008 and 2010 he undertook a fellowship in diagnostic neuroradiology and neurointervention at the National Hospital for Neurology and Neurosurgery, Queen Square. In 2010 he was appointed as a Consultant diagnostic and interventional neuroradiologist (INR) at the Atkinson Morley Neurosciences Centre at St George’s Hospital where he is now part of a highly skilled team delivering best practice in interventional neuroradiology. He is also an Honorary Senior Lecturer at St George’s University of London Medical School, working in the Stroke and Dementia Research Centre. He was instrumental in developing and delivering the first 24/7 mechanical thrombectomy service for stroke in the UK.

Memberships & Affiliations

Fellow of the Royal College of Radiologists, London

British Society of Neuroradiologists

UK Neurointerventional Group

European Society of Minimally Invasive Neurological Therapy


Linked In


BBC Interview

ITV Interview

The Guardian

The Independent

New Statesman Round Table Discussion (thrombectomy)

GE Assist Magazine (pages 37-43)


Link to Publications (ResearchGate)