QFR
Pronunciation: Q-F-R
Also written as: QFR — Quantitative Flow Ratio
Quantitative Flow Ratio, a novel angiography-based method for assessing coronary stenosis severity without need for pressure wire or adenosine.
Full Definition
Quantitative Flow Ratio (QFR) is an innovative angiography-based computational technique that estimates fractional flow reserve without requiring pressure wire instrumentation or pharmacological hyperemia. The technology uses advanced computational fluid dynamics applied to standard coronary angiographic images to calculate pressure gradients across stenotic lesions. QFR offers advantages including reduced procedural time, elimination of adenosine administration, and cost savings while maintaining diagnostic accuracy comparable to traditional FFR measurement. The technique is particularly valuable in centers with limited pressure wire availability or in patients where adenosine is contraindicated. QFR represents a significant advancement in physiological lesion assessment.
Usage
Usage note: Capitalize all letters when using acronym; distinguish from QCA (quantitative coronary angiography).
In Context
- "QFR analysis revealed a functionally significant lesion with a value of 0.75." — Physiological assessment
- "The hybrid approach combined QFR assessment with intravascular imaging guidance." — Advanced procedural planning