IVUS
Also written as: IVUS — Intravascular Ultrasound
Intravascular ultrasound; catheter-based imaging providing cross-sectional views of coronary artery walls.
Full Definition
Intravascular ultrasound is an invasive imaging technique that uses miniaturized ultrasound transducers on catheters to provide real-time, high-resolution cross-sectional images of coronary arteries from within the vessel lumen. IVUS allows assessment of vessel dimensions, plaque characteristics, and stent deployment. This technique provides information not available from angiography alone, including vessel wall morphology and the extent of atherosclerotic disease. IVUS guidance improves outcomes in percutaneous coronary interventions by ensuring optimal stent sizing and deployment.
Usage
Usage note: Measurements should include minimum lumen area and reference vessel dimensions.
In Context
- "IVUS confirmed adequate stent expansion with no edge dissection." — Interventional procedure report
- "Pre-intervention IVUS showed a minimum lumen area of 2.1 mm² in the proximal LAD." — Cardiac catheterization documentation