Interventional radiology(IR) is a group of techniques where medical images, such as x-ray fluoroscopy, computed tomography, or ultrasound, are used to precisely guide medical therapies to the internal structures of the body through very small incisions or body orifices. IR is broadly classified into two main types of procedures: diagnostic and therapeutic.
Diagnostic techniques use medical imaging to either precisely guide biopsy of an abnormality, such as a cancerous tumor, or inject a radiopaque agent to visualize a hollow structure, such as a blood vessel or a duct. Examples of diagnostic procedures include angiograms and lung biopsy.
Therapeutic techniques precisely guide therapies, such as stents or clotting agents, to an abnormality. Examples of therapeutic procedures include fistuloplasty, femoral angioplasty, or embolization.
The main benefit of interventional radiology techniques is that they can reach the deep structures of the body through a body orifice or tiny incision using small needles and wires which decreases risks, pain,