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Table 4 Interstudy bias, interstudy variability, and correlation coefficient

From: A comparison of cine CMR imaging at 0.55 T and 1.5 T

 Inter study reproducibility (bias ± 1.96xSD) between field strengthscoefficient of variationCorrelation coefficient
LVEDVAll0.4 ± 18.6 mL (− 18.4 mL to 18.8 mL)3.3%0.99
Breath-held0.0 ± 20.6 mL (−20.6 mL to 20.6 mL)4.5%0.98
Free-breathing0.9 ± 15.9 mL (−15.0 mL to 16.9 mL)2.3%0.99
LVESVAll1.3 ± 14.8 mL (−13.5 mL to 16.2 mL)5.3%0.98
Breath-held1.3 ± 18.2 mL (−16.9 mL to 19.5 mL)6.4%0.98
Free-breathing1.4 ± 9.0 mL (−7.7 mL to 10.4 mL)3.7%0.99
LVED MassAll0.4 ± 11.2 g (−10.8 g to 11.5 g)2.9%0.99
Breath-held0.1 ± 12.9 g (−12.8 g to 12.9 g)3.2%0.99
Free-breathing0.7 ± 8.6 g (−7.9 g to 9.3 g)2.5%0.99
LVES MassAll1.3 ± 13.2 g (−11.8 g to 14.6 g)3.0%0.99
Breath-held 2.2 ± 14.9 g (−12.7 g to 17.1 g)3.6%0.99
Free-breathing0.2 ± 10.4 g (−10.2 g to 10.5 g)2.3%0.99
LVSVAll−1.0 ± 17.1 mL (−18.0 mL to 16.1 mL)5.1%0.95
Breath-held−1.2 ± 19.4 mL (− 10.6 mL to 18.2 mL)6.2%0.89
Free-breathing-0.7 ± 13.8 mL (−14.4 mL to 13.1 mL)3.6%0.98
LVEFAll−0.8 ± 7.2% (−8.0 to 6.4%)5.8%0.91
Breath-held−0.9 ± 8.9%(−9.8 to 8%)6.3%0.91
Free-breathing−0.6 ± 4.15% (−4.8 to 3.5%)5.1%0.88
RVEDVAll−1.6 ± 18.5 mL (−20 mL to 16.9 mL)2.9%0.98
Breath-held-1.6 ± 16.0 mL (−17.6 mL to 14.4 mL)2.6%0.95
Free-breathing−1.5 ± 21.7 mL (−23.1 mL to 20.2 mL)3.3%0.98
RVESVAll−1.2 ± 11.7 mL (− 12.9 mL to 10.5 mL)5.4%0.97
Breath-held−0.5 ± 11.7 mL (− 12.2 mL to 11.2 mL)5.1%0.95
Free-breathing−2.2 ± 11.7 mL (−13.9 mL to 9.5 mL)5.8%0.98
RVSVAll−0.2 ± 19.7 mL (−19.9 mL to 19.5 mL)5.7%0.92
Breath-held0.1 ± 17.7 mL (−18.3 mL to 17.1 mL)5.4%0.86
Free-breathing0.3 ± 22.4 mL (−22.1 mL to 22.7 mL)6.0%0.94
RVEFAll−0.1 ± 7.7% (−8.0 to 7.8%)4.0%0.82
Breath-held−0.6 ± 7.4% (−7.5 to 7.3%)3.9%0.97
Free-breathing0.0 ± 8.6% (−8.6 to 8.6%)4.2%0.69
  1. Interstudy bias, interstudy variability, and correlation coefficient between 0.55 T and 1.5 T for quantitative ventricular volume and systolic function measurements. Coefficient of variation was calculated from the standard deviation between 0.55 T and 1.5 T measurements, divided by the mean of the two measurements