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Table 2 Anatomical features, flow dynamics and biomechanics in the false lumen

From: False lumen rotational flow and aortic stiffness are associated with aortic growth rate in patients with chronic aortic dissection of the descending aorta: a 4D flow cardiovascular magnetic resonance study

 

Overall (n = 54)

Surgically-treated type A AD with residual tear (n = 35)

Medically-treated type B AD

(n = 19)

P-value

Anatomical features

Maximum DAo diameter [mm]

48 ± 10

48 ± 11

49 ± 8

0.368

Dominant entry tear area [cm2]

1.2 ± 0.8

1.1 ± 0.8

1.3 ± 0.9

0.326

Local distance of the dominant entry tear [mm]

28 ± 28

30 ± 26

26 ± 33

0.370

Thrombus in the false lumen [%]

11 ± 14

11 ± 14

12 ± 16

0.636

Flow dynamics in the false lumen

 

Retrograde systolic flow [mL]

1.6 ± 1.3

1.6 ± 1.1

1.6 ± 1.5

0.867

Retrograde diastolic flow [mL]

9.7 ± 5.0

9.8 ± 4.5

9.5 ± 6.0

0.553

Retrograde flow fraction [%]

82 ± 42

92 ± 42

66 ± 38

0.109

IRF [cm2/s]

1.25 ± 5.79

1.04 ± 4.55

1.63 ± 7.72

0.923

WSS [N/m2]

0.26 ± 0.10

0.26 ± 0.10

0.24 ± 0.10

0.475

KE [mJ]

0.62 ± 0.48

0.54 ± 0.34

0.47 ± 0.30

0.523

MSDR [cm/s3]

2996 ± 2552

3448 ± 2531

2193 ± 2453

0.055

Flow stasis [%]

52 ± 18

54 ± 18

47 ± 18

0.200

Biomechanics in the false lumen

 

PWV [m/s]

7.7 ± 3.7

7.7 ± 3.7

7.6 ± 3.6

0.808

  1. Values are mean ± standard deviation
  2. DAo descending aorta, IRF in-plane rotational flow, KE kinetic energy, MSDR maximum systolic deceleration rate, PWV pulse wave velocity, WSS wall shear stress