The Interventional Radiology Department is staffed with highly trained registered nurses, technologists, and radiologists. It is a clinical subspecialty that uses fluoroscopy, CT, or ultrasound to guide the radiologist during procedures such as biopsies (liver, lung, kidney), draining fluid, inserting catheters, and visualizing blood vessels, as in angiography.  
 
Angiography is a minimally invasive medical test that helps physicians diagnose and treat medical conditions. Angiography uses one of three imaging technologies and, in some cases, a contrast material or dye to produce pictures of major blood vessels throughout the body. Angiography is performed using:

• x-rays with catheters
• computed tomography (CT)
• magnetic resonance imaging (MRI).

In catheter angiography, a thin plastic tube, called a catheter, is inserted into an artery through a small incision in the skin. Once the catheter is guided to the area being examined, a contrast material is injected through the tube and images are captured using a small dose of ionizing radiation. You will be closely monitored before, during, and after the procedure by registered nurses.

Risks
You and your doctor will discuss any risks that may apply to you individually. Your doctor and the radiologist will factor these risks into a decision to proceed with the exam.

Preparation
Wear loose fitting, comfortable clothing that is free of metal and zippers. Depending upon the exam, fasting may be required or you may have to drink an oral contrast the evening before the test. Most medications may be taken with a very small amount of water.

Learn more about preparation, registration and results.