Intravascular imaging is a catheter based system that allows physicians such as interventional cardiologists to acquire images of diseased vessels from inside the artery. Intravascular imaging provides detailed and accurate measurements of vessel lumen morphology, vessel size, extension of diseased artery segments, vessel size and plaque characteristics.

Intravascular ultrasound (IVUS) uses a transducer or probe to generate sound waves and produce images of blood vessels. When used to evaluate the coronary arteries, IVUS can show the entire artery wall and provide important information about the amount and type of plaque buildup, which can help determine if you are at risk for heart attack. Ultrasound does not use ionizing radiation, has no known harmful effects, and can provide clear pictures of soft tissues that are not well seen on x-ray images.

This procedure requires little or no special preparation. However, doctors often use it in conjunction with another procedure. Therefore, ask your doctor about how to prepare and whether you will be admitted to the hospital. If your procedure will use sedation, your doctor may tell you not to eat or drink anything for up to eight hours before your exam. Leave jewelry at home and wear loose, comfortable clothing. You may need to wear a gown.