intravascular ultrasound
Also written as: IVUS — Intravascular Ultrasound
A catheter-based imaging technique that provides cross-sectional views of blood vessel walls from inside the lumen.
Full Definition
Intravascular ultrasound (IVUS) is a tomographic imaging modality that uses a miniaturized ultrasound transducer on a catheter to generate real-time, cross-sectional images of vessel walls from within the arterial lumen. IVUS provides detailed visualization of plaque morphology, vessel dimensions, and stent deployment characteristics not visible on conventional angiography. The technology enables precise measurement of lumen area, plaque burden, and vessel remodeling patterns. IVUS guidance during percutaneous coronary intervention has been associated with improved procedural outcomes, optimal stent sizing, and reduced rates of stent thrombosis and restenosis.
Usage
Usage note: IVUS measurements should be reported in millimeters with one decimal place precision.
In Context
- "IVUS imaging confirmed adequate stent expansion with minimal edge dissection." — Procedure report
- "Intravascular ultrasound guidance resulted in larger final lumen dimensions compared to angiography alone." — Research paper