IVUS
Pronunciation: EYE-vus
Also written as: IVUS — Intravascular Ultrasound
Invasive imaging modality using ultrasound to visualize coronary artery wall structure and guide interventional procedures.
Full Definition
Intravascular Ultrasound (IVUS) is an invasive imaging technique that employs ultrasound technology to provide real-time, cross-sectional images of coronary arteries from within the vessel lumen. IVUS offers detailed visualization of vessel wall architecture, plaque composition, and stent deployment characteristics that are not visible on conventional angiography. In cardiovascular research, IVUS serves multiple roles including endpoint assessment in clinical trials, guidance for optimal stent sizing and deployment, and evaluation of atherosclerosis progression or regression. The technique provides quantitative measurements of vessel dimensions, plaque burden, and procedural outcomes with superior accuracy compared to angiographic assessment alone.
Usage
Usage note: Distinguish from other imaging modalities; specify measurement parameters when reporting quantitative results.
In Context
- "IVUS-guided stent implantation resulted in larger minimum stent area compared to angiography guidance." — interventional cardiology study
- "Serial IVUS examinations demonstrated significant plaque regression following intensive statin therapy." — drug efficacy trial