Skip to main content

Table 3 Comparison of 1Dir and 3Dir PC-CMR derived parameters with TTE

From: Quantification of aortic stenosis diagnostic parameters: comparison of fast 3 direction and 1 direction phase contrast CMR and transthoracic echocardiography

 

1Dir PC-CMR x TTE

3Dir PC-CMR x TTE

Comparisons of r

r

95% CI

p-value

Bias ± SD

r

95% CI

p-value

Bias ± SD

p-value

Vmean

0.77

0.50–0.90

<0.0001

−0.5 ± 0.4 m/s

0.80

0.56–0.91

<0.0001

−0.2 ± 0.4 m/s

0.6541

Vpeak

0.81

0.58–0.92

<0.0001

−0.2 ± 0.5 m/s

0.87

0.71–0.95

<0.0001

0.2 ± 0.4 m/s

0.5117

MG

0.79

0.55–0.91

<0.0001

−9.5 ± 9.3 mmHg

0.83

0.62–0.93

<0.0001

−2.9 ± 7.6 mmHg

0.7555

PG

0.78

0.53–0.91

<0.0001

−5.5 ± 13.3 mmHg

0.87

0.69–0.94

<0.0001

4.1 ± 11.2 mmHg

0.4270

VTI

0.72

0.41–0.88

0.0003

−3.9 ± 16.3 cm

0.80

0.56–0.91

<0.0001

1.6 ± 14.6 cm

0.5631

SVa

0.75

0.47–0.90

0.0001

9.7 mL ± 17.8 mL

0.81

0.57–0.92

<0.0001

−7. 4 mL ± 13.3 ml

0.6749

AVACine

0.61

0.22–0.83

0.0056

0.31 ± 0.37 cm2

0.61

0.21–0.83

0.0057

0.22 ± 0.33 cm2

0.9939

AVAFlow

0.64

0.27–0.85

0.0030

0.43 ± 0.32 cm2

0.66

0.29–0.86

0.0023

0.09 ± 0.30 cm2

0.9427

  1. r Pearson’s correlation coefficient; 95% confidence intervaI for r, SD standard deviation, Vmean Mean velocity, Vpeak peak velocity, MG Mean Gradient, PG peak gradient, VTI velocity time integral, SV stroke volume, AVACine = SV cine/PC-CMR VTI AV, AVAFlow = SVPC/PC-CMR VTI AV
  2. aSV correlation was compared to Cine SV