Skip to main content

Table 3 Results for the whole aorta in the three cohorts

From: Wall shear stress and relative residence time as potential risk factors for abdominal aortic aneurysms in males: a 4D flow cardiovascular magnetic resonance case–control study

 

AAA (N = 18)

Elderly controls (N = 22)

Young controls (N = 23)

AAA vs elderly controls (p)

Elderly controls vs young controls (p)

Diameter/BSA [mm m−2]

 AAo

17.07 [2.36]

17.36 ± (1.77)

13.82 ± (1.29)

0.9026

 < 0.001*

 Arch

16.66 [2.46]

16.37 ± (1.37)

13.26 ± (1.03)

0.4882

 < 0.001*

 DAo

15 ± (1.87)

14.22 ± (1.18)

10.41 ± (0.92)

0.1192

 < 0.001*

 SAA

13.53 ± (1.32)

12.12 ± (0.98)

9.03 ± (0.77)

< 0.001*

 < 0.001*

 IAA

16.51 ± (2.45)

9.68 ± (0.98)

7.64 ± (0.71)

 < 0.001*

 < 0.001*

Peak velocity [m s−1]

 AAo

0.46 [0.13]

0.48 ± (0.11)

0.8 ± (0.16)

0.577

 < 0.001*

 Arch

0.31 ± ( 0.1)

0.34 ± (0.08)

0.61 ± (0.13)

0.363

 < 0.001*

 DAo

0.34 ± (0.11)

0.41 [0.12]

0.89 ± (0.12)

0.005*

 < 0.001*

 SAA

0.37 [ 0.1]

0.51 ± (0.09)

1.06 ± (0.18)

< 0.001*

 < 0.001*

 IAA

0.18 [0.07]

0.49 ± (0.12)

0.65 ± ( 0.1)

 < 0.001*

 < 0.001*

Peak WSS [Pa]

 AAo

0.75 ± (0.16)

0.88 ± (0.21)

1.63 ± (0.32)

0.038

 < 0.001*

 Arch

0.49 ± (0.12)

0.55 ± (0.12)

0.99 ± (0.21)

0.083

 < 0.001*

 DAo

0.59 ± (0.12)

0.8 [ 0.2]

1.87 ± (0.24)

 < 0.001*

 < 0.001*

 SAA

0.67 ± (0.14)

0.99 ± (0.17)

2.27 ± (0.37)

 < 0.001*

 < 0.001*

 IAA

0.37 ± (0.07)

1.01 ± (0.24)

1.43 ± (0.21)

 < 0.001*

 < 0.001*

TAWSS [Pa]

 AAo

0.31 ± (0.04)

0.37 ± (0.06)

0.44 ± (0.05)

< 0.001*

 < 0.001*

 Arch

0.2 ± (0.03)

0.24 ± (0.04)

0.33 ± (0.04)

0.003*

 < 0.001*

 DAo

0.2 ± (0.04)

0.29 ± (0.05)

0.54 ± (0.06)

 < 0.001*

 < 0.001*

 SAA

0.22 ± (0.03)

0.33 ± (0.06)

0.65 ± (0.09)

 < 0.001*

 < 0.001*

 IAA

0.15 ± (0.02)

0.31 ± (0.08)

0.41 ± (0.06)

 < 0.001*

 < 0.001*

OSI [−]

 AAo

0.15 ± (0.03)

0.15 ± (0.02)

0.09 ± (0.02)

0.900

 < 0.001*

 Arch

0.18 [0.04]

0.19 ± (0.04)

0.14 ± (0.05)

0.775

 < 0.001*

 DAo

0.14 ± (0.03)

0.11 [0.05]

0.06 ± (0.02)

0.006*

 < 0.001*

 SAA

0.09 ± (0.03)

0.08 ± (0.04)

0.04 ± (0.02)

0.392

 < 0.001*

 IAA

0.2 ± (0.05)

0.2 ± (0.08)

0.24 ± (0.07)

0.946

0.122

RRT [−]

 AAo

6.63 ± (1.15)

5.56 ± (0.92)

3.07 [0.93]

0.002*

 < 0.001*

 Arch

11.79 ± (2.83)

10.07 ± (2.88)

5.77 ± (1.81)

0.065

 < 0.001*

 DAo

9.26 ± (1.97)

5.34 [2.09]

2.37 ± (0.38)

 < 0.001*

 < 0.001*

 SAA

6.67 ± ( 1.3)

4.26 [1.86]

1.85 ± (0.38)

 < 0.001*

 < 0.001*

 IAA

15.44 ± ( 3.4)

7.84 ± (3.53)

6.29 ± (2.39)

 < 0.001*

0.091

  1. For each segment, maximum diameter normalized by BSA and average values of peak velocity, peak WSS, TAWSS, OSI and RRT computed from 4D flow CMR are reported as mean ± (standard deviation), when the values are not normally distributed, or median [interquartile range] when not
  2. AAo ascending aorta, DAo descending aorta, IAA infrarenal abdominal aorta, SAA suprarenal abdominal aorta
  3. *Indicates p ≤ 0.025
Back to article page

Journal of Cardiovascular Magnetic Resonance

ISSN: 1532-429X

Contact us