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Table 2 Comparison of peak velocities of 4D flow CMR and 2D PC CMR and Doppler echo

From: Hemodynamic evaluation in patients with transposition of the great arteries after the arterial switch operation: 4D flow and 2D phase contrast cardiovascular magnetic resonance compared with Doppler echocardiography

 

Sample size (n)

4D flow CMR peak velocity (m/s) mean (SD)

2D PC CMR peak velocity (m/s) mean (SD)

Doppler Echo peak velocity (m/s) mean (SD)

4D flow CMR & Doppler Echo p-value

2D PC CMR & Doppler Echo p-value

AAO

13

1.4 (0.5)

1.1 (0.3)

1.5 (0.7)

0.824

0.114

MPA

9

1.5 (0.7)

1.2 (0.5)

1.5 (0.5)

0.858

0.139

RPA

6

2.0 (0.8)

1.8 (0.8)

2.0 (0.6)

0.833

0.600

LPA

6

1.8 (0.5)

1.6 (0.5)

2.1 (0.8)

0.463

0.207