FFR, iFR, and Other Resting Indices | 合法醫療器材資訊網

FFRisapressurewire–basedindexusedduringcoronaryangiographytoassessthepotentialofcoronarystenosistoinducemyocardialischemia.FFRisdefined ...

It is well known that apparent significant coronary stenosis on angiography sometimes does not cause significant ischemia, and vice versa. Thus, the importance of functional assessment of coronary stenosis based on coronary physiology has been increasingly recognized. Since the introduction of fractional flow reserve (FFR) more than 25 years ago, FFR-guided revascularization has become the current standard of care for functional assessment of lesion severity in patients with coronary artery disease (CAD). More recently, the instantaneous wave-free ratio (iFR) and other resting pressure–derived indices that do not require hyperemia have emerged as alternatives to FFR. This article summarizes the concepts of FFR, iFR, and other resting indices and the current evidence supporting their use.

FFR is a pressure wire–based index used during coronary angiography to assess the ...