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Interventional Radiology

Interventional Radiology (IR) refers to a range of techniques which rely on the use of radiological image guidance (X-ray fluoroscopy, ultrasound, computed tomography [CT] or magnetic resonance imaging [MRI]) to precisely target therapy

Most IR treatments are minimally invasive alternatives to open and laparoscopic (keyhole) surgery.

As many IR procedures start with passing a needle through the skin to the target it is sometimes called pinhole surgery.

Useful links:
British Society of Interventional Radiology website