Table 3

Correlation and Bland-Altman Analysis of MDCT and CMR

ParametersCorrelation Coefficient (r)Linear Regression EquationSignificance Level (p Value)Mean Difference (Bias)SD95% CI for Mean
Infarct size, % LV mass
 Total0.70y = 0.9x + 9.4<0.0001−7.54.270.8 to −15.9
 Week 120.37y = 0.5x + 14.10.16−7.55.233.0 to −18.0
 Week 240.89y = 1.0x + 7.5<0.0001−7.53.06−1.7 to −13.3
 Placebo0.44y = 0.5x + 15.40.09−7.44.221.7 to −16.5
 MSC0.82y = 1.1x + 6.1<0.001−7.64.070.2 to −15.4
Total infarct volume, ml
 Total0.81y = 1.3x + 1.9<0.0001−3.21.710.3 to −6.6
 Week 120.68y = 1.2x + 2.30.004−3.01.770.3 to −6.4
 Week 240.87y = 1.3x + 1.9<0.0001−3.31.760.3 to −6.9
 Placebo0.73y = 1.1x + 2.70.001−3.31.940.4 to −7.0
 MSC0.86y = 1.5x + 1.2<0.0001−3.01.530.3 to −6.2
LV ejection fraction, %
 Total0.90y = 1.1x − 3.2<0.0001−0.93.816.6 to −8.5
 Week 120.87y = 1.1x − 2.4<0.0001−0.93.696.1 to −8.0
 Week 240.92y = 1.1x − 3.5<0.0001−0.94.197.3 to −9.1
 Placebo0.88y = 1.4x − 12.1<0.00010.33.437.6 to −7.0
 MSC0.91y = 1.0x − 3.6<0.0001−2.23.785.0 to −9.6
ED volume, ml
 Total0.82y = 0.7x + 19.3<0.0001−0.026.6315.9 to −16.0
 Week 20.84y = 0.6x + 23.6<0.001−1.25.9015.7 to −18.0
 Week 240.81y = 0.8x + 12.2<0.0011.17.4416.3 to −14.1
 Placebo0.81y = 0.7x + 18.5<0.001−3.16.3811.1 to −17.3
 MSC0.81y = 0.7x + 15.9<0.0013.07.1018.8 to −12.7

Total: n = 32; week 12, week 24, placebo, MSC: n = 16.

CMR = cardiac magnetic resonance; other abbreviations as in Tables 1 and 2.