Two complementary imaging techniques
Intravascular ultrasound (IVUS) uses ultrasound; optical coherence tomography (OCT) uses light. Both provide views from within a coronary artery, offering information beyond the outline seen on an angiogram.
Why your cardiologist may recommend it
Imaging may help evaluate plaque, measure the artery or assess a stent. The choice of technique depends on the question being asked, the artery and your clinical circumstances.
During your procedure
A small imaging catheter is advanced through the coronary artery in the catheter laboratory. The images are reviewed by the treating cardiologist and may influence the treatment plan.
Discussing the risks
These tests accompany invasive catheter procedures and have associated risks, including vessel injury. OCT may require additional contrast, which matters for patients with kidney problems. Ask how the information is expected to help your care.
Discuss your options
Bring your previous reports and medicine list to a consultation. Ask how this test or procedure would help in your situation, what alternatives are available and what follow-up you may need.
General patient information, prepared from practice information and the references below. It does not replace a consultation, diagnosis or your hospital’s instructions.
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