Interventional radiology

Interventional radiology is a sub-specialty of radiology. It uses image-guidance to perform procedures to diagnose and treat diseases using the least invasive techniques.

Many conditions that needed surgery can now be treated by interventional radiology techniques. The benefits include:

  • reduced physical trauma
  • less pain
  • shorter recovery time
  • less time spent in hospital

We provide high-quality care and use the latest technology to achieve the best results.

We offer a range of procedures for most areas of interventional radiology. This includes:

  • vascular
  • non-vascular
  • interventional oncology

We're an internationally renowned centre for tertiary referrals. We're accredited by the International Accreditation System for Interventional Oncology Services.

We specialise in:

  • peripheral occlusive arterial disease
  • carotid stenting
  • spine intervention
  • kidney intervention
  • embolisations, a procedure used to stop the blood flow to a certain part of your body by blocking a small artery or vein
    • uterine artery embolisation (UAE), used to treat fibroids
    • postpartum hemorrhage (PPH), treating heavy bleeding after birth
    • trauma
    • prostatic artery embolisation (PAE), a treatment that stops blood flow to the prostate to reduce its size and help improve lower urinary tract symptoms caused by a benign prostatic hyperplasia (BPH)
    • gastrointestinal bleeding, stopping bleeding vessels supplying the bowel
    • all aspects of diagnosis, palliative and treatment options for cancer
      • image guided biopsies
      • tumour ablation, treatment that uses very high or low temperatures to remove small tumours
      • stenting of the tracheobronchial tree, inserting stents into the upper airways to treat obstructions of the windpipe (trachea), the main airways of the lung (bronchi) and the smaller airways inside your lungs (bronchioles)
      • gastrointestinal dilatation and stenting, treatment of any narrowing in the gastrointestinal tract by using a balloon or inserting a stent into the lumen
      • biliary intervention, treatments for blocked bile ducts and gallbladders that are infected or inflammed
  • vascular anomalies, treating a range of conditions related to 'birthmarks' or growths of blood vessels
  • children's services

We work with the vascular surgery service. Our aortic stent grafting programmes is 1 of the largest in the country. This includes: 

  • endovascular aneurysm repair (EVAR), a procedure performed through a small hole in your groin to repair an aneurysm
  • emergency EVAR
  • fenestrated grafts, a procedure to repair the aorta, which is the main artery carrying blood away from your heart. It's done through small incisions in your groin or arms, or both. Blood flow to the arteries serving your kidneys and other organs is maintained throughout the procedure

Our consultants

Shahzad Ilyas, clinical lead

Athanasios Diamatopoulos

Irfan Ahmed

Narayan Karunanithy  

Leo Monzon

Usman Raja

Aneeta Parthipun  

Panagiotis Gkoutzios

M Jarzabek

Gregory Makris

Steven Moser

Tarun Sabharwal

Narayan Thulasidasan

Research and clinical trials

Research is vital to improving the care that you receive when you're unwell. You can help improve healthcare by taking part in research studies at our Trust. During your appointment, ask your healthcare professional about research. They'll be happy to tell you about research studies you could be eligible to join.

Last updated: November 2023

Contact us


St Thomas' Hospital: 020 7188 5479

Guy's Hospital: 020 7188 5576

Pre-operative assessment clinic: call the switchboard on 020 7188 7188 and ask for the clinic


1st floor, Lambeth Wing, St Thomas' Hospital, Westminster Bridge Road, London SE1 7EH

3rd floor, Tower Wing, Guy's Hospital, Great Maze Pond, London SE1 9RT

We're open Monday to Friday, 9am to 5pm.

Do you have any comments or concerns about your care?

Contact our Patient Advice and Liaison Service (PALS)

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