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Table 1 Comparison between 2D (level 1) and 4D (level 1 and 4D max-targeted) derived peak velocity (+Doppler-echocardiography) in the ascending aorta in patients with aortic valve stenosis and in the pulmonary trunk in patients with pulmonary valve stenosis

From: Four-dimensional velocity encoded MRI improves blood flow quantification in patients with semilunar valve stenosis

Patients

Vmax (m/s) ECHO

Vmax (m/s) 2D Level 1

Vmax (m/s) 4D Level 1

Vmax (m/s) 4D max-targeted

Mean

2.78

2.40

2.74

3.12

SD

0.68

0.54

0.64

0.63

p-value*

0.009

-

0.025

< 0.001

p-value**

-

<0.01

>0.05

<0.05

  1. Vmax = peak velocity, 2D = two-dimensional, 4D = four-dimensional, SD = standard deviation, Echo = Doppler-echocardiography, * = compared to 2D, ** = compared to Echo
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Journal of Cardiovascular Magnetic Resonance

ISSN: 1532-429X

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