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Table 3 Agreement between CFVR measured by echocardiography and MFR measured by PET of the LAD territory (n = 35)

From: Coronary flow velocity reserve by echocardiography: feasibility, reproducibility and agreement with PET in overweight and obese patients with stable and revascularized coronary artery disease

  1 week Total
MFRLAD – CFVR No-MILAD (n = 12) MILAD (n = 8) Combined (n = 20) No-MILAD (n = 23) MILAD (n = 12) Combined (n = 35)
Pearson correlation, r 0.71 (0.0090) 0.43 (0.29) 0.57 (0.0086) 0.49 (0.018) 0.44 (0.16) 0.46 (0.0053)
Mean difference 0.11 (−0.33;0.17) −0.23 (−0.91;0.45) −0.14 (−0.42;0.13) 0.05 (−0.40;0.17) −0.02 (−0.55;0.53) 0.03 (−0.22;0.27)
2SD 0.79 (0.42;1.16) 1.63 (0.60;2.66) 1.17 (0.77;1.56) 1.32 (0.91;1.73) 1.67 (0.89;2.45) 1.43 (1.07;1.78)
CV [%] 17 (9;25) 31 (12;51) 24 (16;32) 27 (19;36) 34 (18;51) 29 (22;37)
  1. Values are given as estimate (P or CI). CFVR Coronary flow velocity reserve by echocardiography of the LAD, MFR LAD Myocardial flow reserve of the LAD territory by PET, MI LAD Myocardial infarction of the LAD territory, 2SD Two times standard deviation of differences, CV coefficient of variation