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Residual Quantitative Flow Ratio to Estimate Post-Percutaneous Coronary Intervention Fractional Flow Reserve.

Pepijn A van DiemenRuben W de WinterStefan P SchumacherMichiel J BomRoel S DriessenHenk EveraarsRuurt A JukemaYvemarie B SomsenLenka PopelkovaPeter M van de VenAlbert C van RossumTim P van de HoefStefan de HaanKoen M MarquesJorrit S LemkesYolande AppelmanAlexander NapNiels J VeroudenMaksymilian P OpolskiIbrahim DanadPaul Knaapen
Published in: Journal of interventional cardiology (2021)
A significant correlation and agreement between residual QFR and post-PCI FFR were observed. Residual QFR ≥ 0.90 did not necessarily commensurate with a satisfactory PCI (post-PCI FFR ≥ 0.90). In contrast, residual QFR exhibited a high specificity for prediction of a suboptimal PCI result.
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