Fig. 3From: A study of noninvasive fractional flow reserve derived from a simplified method based on coronary computed tomography angiography in suspected coronary artery diseaseComparison among CCTA stenosis, FFRCTA, FFRSS and invasive FFR on a per-vessel basis. a Pearson correlation between FFRCTA and invasive FFR, r was 0.742 with significant difference (P = 0.001). b Bland–Altman plots of FFRCTA and invasive FFR, mean difference 0.03, standard deviation 0.05. c Pearson correlation between FFRSS and invasive FFR, r was 0.729 with significant difference (P = 0.001). d Bland–Altman plots of FFRSS and invasive FFR, mean difference 0.03, standard deviation 0.06. e Pearson correlation between stenosis and invasive FFR, r was −0.409 with significant difference (P = 0.013). f Mean vlaue of FFR, FFRCTA, FFRSS and stenosisBack to article page