What FFR-CT value indicates ischemia?

An FFR-CT value <=0.80 at the distal lesion site indicates hemodynamically significant ischemia, analogous to invasive FFR, and supports revascularization consideration.

How does FFR-CT compare to invasive FFR?

NXT and PLATFORM trials showed FFR-CT sensitivity ~86% and specificity ~79% vs invasive FFR, with good correlation allowing safe deferral of invasive testing in many patients.

What are limitations of FFR-CT?

FFR-CT has reduced accuracy in heavily calcified lesions, poor image quality, left main disease, or significant arrhythmias. Invasive FFR remains gold standard in ambiguous cases.

FFR-CT Ischemia Threshold 0.80

Apply the fractional flow reserve derived from CT (FFR-CT) threshold of <=0.80 to identify hemodynamically significant coronary lesions and guide revascularization decisions.

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FFR-CT Ischemia Threshold 0.80

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Frequently Asked Questions

What FFR-CT value indicates ischemia?

How does FFR-CT compare to invasive FFR?

What are limitations of FFR-CT?