Table 3 Reproducibility of analysis.

From: A Novel Method for Estimating Myocardial Strain: Assessment of Deformation Tracking Against Reference Magnetic Resonance Methods in Healthy Volunteers

Variable

Mean bias ± SD (%)

95% Limits of agreement

p-value

ICC

Correlation R

p-value

DENSE-intra

−0.10 ± 0.50

−1.06 to 0.80

<0.01

0.95

0.934

<0.01

DENSE-inter

0.05 ± 0.60

−1.01 to 1.12

0.53

0.94

0.906

<0.01

Deformation-tracking-intra

−0.07 ± 0.27

−0.61 to 0.48

0.33

0.97

0.960

<0.01

Deformation-tracking-inter

−0.11 ± 0.34

−0.79 to 0.58

<0.01

0.95

0.953

<0.01

Feature-tracking-intra

−0.14 ± 0.89

−1.92 to 1.64

0.49

0.97

0.978

<0.01

Feature-tracking-inter

0.40 ± 1.21

−2.02 to 2.82

0.15

0.96

0.955

<0.01

  1. ICC: intra-class correlation co-efficient. SD: standard deviation. A sample size of 20 images was taken per variable. The intra-class correlation coefficient is above 0.85 for all of them.
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