FFR
Also written as: FFR — Fractional Flow Reserve
Fractional flow reserve; a measurement of the functional significance of coronary artery stenosis.
Full Definition
Fractional flow reserve (FFR) is a physiological measurement used to assess the hemodynamic significance of coronary artery stenosis by calculating the ratio of maximum blood flow distal to a stenotic lesion compared to maximum flow in the absence of stenosis. FFR is measured using a pressure wire during cardiac catheterization under maximal hyperemia, typically induced by adenosine. An FFR value ≤0.80 indicates hemodynamically significant stenosis that would benefit from revascularization. This measurement helps guide treatment decisions by distinguishing between anatomically significant but functionally insignificant lesions and those requiring intervention.
Usage
Usage note: Include the specific FFR value and threshold (typically 0.80) when documenting results.
In Context
- "FFR measurement of the LAD lesion was 0.75, indicating hemodynamic significance." — Cardiac catheterization report
- "The patient's chest pain was attributed to the vessel with an FFR of 0.72." — Interventional cardiology consultation