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Table 1 Results

From: Comparison and reproducibility of standard and high temporal resolution myocardial tissue tagging in patients with severe aortic stenosis

  

Peak systolic strain (%)

Peak systolic strain rate (1/s)

Peak diastolic strain rate (1/s)

SBH

 

-13.7±2.4

-0.74±0.15

0.75±0.27

MBH (MA of three)

 

-15.1±3.1 (p=0.023 vs. SBH)

-0.73±0.11 (p=0.877 vs. SBH)

1.12±0.54 (p=0.017 vs. SBH)

MBH (MA of five)

-0.69±0.10 (p=0.049 vs. SBH)

  

0.91±0.36 (p=0.535 vs. SBH)

SBH reproducibility

MD±SD CoV B-A

0.50±1.52 11.1% -2.5 to 3.5

-0.01±0.13 18.1% -0.26 to 0.28

-0.04±0.16 21.0% -0.36 to 0.27

MBH reproducibility (MA of three)

MD±SD CoV B-A

1.13±2.23 14.7% -3.3 to 5.6

0.06±0.04 5.3% -0.02 to 0.14

-0.13±0.44 39.0% -1.00 to 0.75

MBH reproducibility (MA of five)

MD±SD CoV B-A

 

0.04±0.05 7.8% -0.07 to 0.15

0.09±0.15 16.9% -0.39 to 0.22

  1. MD±SD=mean difference ± standard deviation, CoV=coefficient of variation, B-A=Bland-Altman 95% limits of agreement