Why is the doctor performing this test?
To view the inner lining of the coronary (heart) or peripheral vascular (e.g.
lower abdomen, kidneys, arms, legs) arteries. Intravascular Ultrasound allows
detailed evaluation of plaque (Atherosclerosis)--its distribution, location,
size, effect on blood vessel diameter--that may be lining the inside of your
arteries. This information is used to evaluate cardiovascular disease which
assists in determining the next step in treatment if needed (i.e. angioplasty or
What is the test?
Intravascular Ultrasound (IVUS) is an invasive diagnostic test using a
catheter with a sound transducer (or sound probe) on the end. It is usually
performed in conjunction with Angiography/Catheterization and/or Transcatheter
interventions (e.g. PTCA, Stent, etc.) The catheter is threaded thru the artery
in the groin to a specific location of the arterial system to further diagnose
the extent of disease. High-frequency sound waves are used to create precise
images of the inner arterial walls. These images are displayed in streaming
video on a monitor. Once the diagnosis is made, the catheter with the ultrasound
tip attached is carefully removed, and then pressure is applied over the groin
area to stop any bleeding.
Where is the test performed?
In the Cardiac Catheterization Lab.
How long does this test take?
Intravascular ultrasound usually takes thirty to sixty