Real-World Comparison of FFR and QFR: New Perspectives on the Functional Assessment of Coronary Stenoses.

The absolute difference between QFR and FFR was greater in the RCA than in the Cx ( p = 0.038) and tended to be greater in the Cx than in the LAD, but this did not reach statistical significance, whereas it was smaller in female patients ( p = 0.006) and in patients with aortic stenosis ( p = 0.033), as shown in Figure 5 c.

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Although diabetes mellitus was not found to be significantly associated with lower FFR, a clear trend was observed, likely reflecting the diffuse, severe atherosclerotic burden characteristic of diabetic patients.

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