August 27, 2015
Fractional flow reserve demonstrated high diagnostic accuracy for flow limitation at the lesion level compared with stress perfusion cardiac magnetic resonance at 3 T, according to results of a substudy of the FAMOUS-NSTEMI trial.
The current substudy included 106 patients with non-STEMI who had been referred for early invasive management. Clinicians at two centers measured FFR in all major patent epicardial coronary arteries with estimated visual stenosis of at least 30%, with a repeat FFR measurement in the event that PCI was performed. Stress perfusion cardiac magnetic resonance at 3 T was used to assess myocardial perfusion. A mean duration of 6.1 ± 3.1 days elapsed between FFR assessment and cardiac magnetic resonance.