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Table 3 Summary of Bland-Altman and concordance correlation statistics comparing inter-observer variability of volume and mass measurements for three image acquisition techniques

From: Improved workflow for quantification of left ventricular volumes and mass using free-breathing motion corrected cine imaging

Statistic EDV (ml) ESV (ml) Mass (g)
BH AVE MOC BH AVE MOC BH AVE MOC
Bland-Altman          
 Bias 3.7 −2.2 2.3 0.5 −1.5 −0.3 −4.3 −0.7 −3.1
 SD of Bias 7.9 6.2 6.8 5.0 4.6 5.1 9.1 11.4 8.4
 Min. Limit (95 %) −11.8 −14.4 −11.0 −9.4 −10.6 −10.3 −22.2 −23.1 −19.5
 Max Limit (95 %) 19.2 10.0 15.5 10.4 7.6 9.7 13.4 21.7 13.2
Concordance correlation coefficient (ρc) 0.9795 0.9852 0.9866 0.9658 0.9678 0.9721 0.9588 0.9486 0.9670
 95 % C. I. 0.9645 to 0.9882 0.9712 to 0.9924 0.9768 to 0.9923 0.9409 to 0.9804 0.9384 to 0.9833 0.9520 to 0.9839 0.9299 to 0.9760 0.9050 to 0.9725 0.9428 to 0.9810
 Pearson correlation coefficient (ρ) 0.9834 0.9868 0.9882 0.9666 0.9712 0.9734 0.9677 0.9536 0.9711
 Bias correction factor (c b) 0.9961 0.9983 0.9984 0.9992 0.9965 0.9987 0.9909 0.9947 0.9958