intravascular ultrasound
Also written as: IVUS
Invasive imaging technique using ultrasound from within blood vessels to assess vessel wall characteristics.
Full Definition
Intravascular ultrasound (IVUS) is an invasive diagnostic imaging technique that provides cross-sectional images of blood vessels from within the vessel lumen using a catheter-based ultrasound transducer. IVUS offers superior resolution of vessel wall architecture compared to angiography, enabling assessment of plaque composition, vessel dimensions, and stent deployment. The technique is particularly valuable for evaluating ambiguous angiographic findings, guiding interventional procedures, and assessing treatment outcomes. IVUS provides real-time imaging with excellent detail of both luminal and wall characteristics.
Usage
Usage note: Specify vessel or anatomical location when reporting IVUS findings.
In Context
- "Intravascular ultrasound confirmed optimal stent expansion and apposition to the vessel wall." — Interventional procedure report
- "IVUS imaging revealed significant plaque burden not apparent on conventional angiography." — Cardiac catheterization report