IVUS
Pronunciation: EYE-vus
Also written as: IVUS — Intravascular Ultrasound
Intravascular ultrasound imaging technique used to assess coronary artery dimensions, plaque characteristics, and stent deployment.
Full Definition
IVUS (Intravascular Ultrasound) is an invasive imaging modality that provides real-time, cross-sectional images of coronary arteries from within the vessel lumen. Using a miniaturized ultrasound transducer on a catheter, IVUS offers detailed assessment of vessel dimensions, plaque morphology, and stent apposition that cannot be achieved with conventional angiography. This technology guides intervention planning, optimizes stent deployment, and detects complications such as edge dissection or stent underexpansion.
Usage
Usage note: Pronounced as a word, not spelled out letter by letter.
In Context
- "IVUS guidance revealed stent underexpansion requiring high-pressure postdilatation." — Image-guided intervention report
- "Pre-intervention IVUS demonstrated a minimum lumen area of 2.1 mm² in the left main stem." — Diagnostic catheterization report