FFR
Also written as: FFR — Fractional Flow Reserve
Fractional flow reserve measurement used to assess the functional significance of coronary artery stenosis during catheterization.
Full Definition
Fractional Flow Reserve (FFR) is an invasive diagnostic technique that measures the pressure difference across a coronary stenosis during maximal hyperemia, typically induced by adenosine administration. The resulting ratio indicates the functional significance of the stenosis, with values below 0.80 generally considered hemodynamically significant and warranting revascularization. FFR has become a standard tool for guiding percutaneous coronary intervention decisions in intermediate stenoses.
Usage
Usage note: Always capitalize when abbreviated; the decimal value should be expressed to two decimal places in clinical documentation.
In Context
- "The FFR measurement of 0.75 confirmed the hemodynamic significance of the mid-LAD lesion." — Cardiac catheterization report
- "FFR-guided PCI has been shown to improve clinical outcomes compared to angiography-guided intervention." — Clinical guideline