Diagnostic imaging: Interventional services

The radiology department provides the following interventional services:

  • Pulmonary angiography: An x-ray exam of arteries and veins in the lungs to diagnose thrombosis (clot) and other blood vessel problems; uses a catheter to enter the blood vessel and a contrast agent (x-ray dye) to make the artery or vein visible on the x-ray.
  • Balloon angioplasty: Opens blocked or narrowed blood vessels by inserting a very small balloon into the vessel and inflating it. Used by interventional radiologists to unblock clogged arteries in the legs or arms (called peripheral vascular disease, or PVD), kidneys, brain and elsewhere in the body.
  • Biliary tube or stent drainage and stenting: Uses a stent (small wire mesh device) to open up blocked ducts and allow bile to drain from the liver as it should.
  • Embolization: Delivery of clotting agents (coils, plastic particles, gelfoam, etc.) directly to an area that is bleeding or to block blood flow to a problem area, such as an aneurysm or a fibroid tumor in the uterus.
  • Hemodialysis access maintenance: Use of angioplasty or thrombolysis to open blocked grafts for hemodialysis, which treats kidney failure.
  • Needle biopsy/bone biopsy: Diagnostic test for breast, lung and other cancers—an alternative to surgical biopsy. Can be used to obtain diagnostic tissue from almost anywhere in the body.
  • Radiofrequency (RF) ablation: Use of RF energy to heat and kill cancerous tumors.

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