Table 3 Validation of severity parameters for AAA rupture prediction

Systolic pressure (mmHg)

188

128

150

Diastolic pressure (mmHg)

90

88

85

Maximum AAA diameter (cm)

5.5

6.1

6.36

AAA length (cm)

10.8

8.4

10*

AAA wall thickness (cm)

0.19

0.18

0.2*

Diameter expansion (cm/year)

0.43

0.54

0.61

Diameter of infrarenal artery (cm)

2.0

2.03

2.0

Asymmetry index β

0.9

0.33

N/A

ILT-AAA area ratio α

N/A

0.54

N/A

Stiffness decrease (% per year)

N/A

N/A

0.21

Severity parameter (SP)

0.5

0.6

0.75

Risk level

Elective repair

Elective repair

Possible rupture

Patient status (clinical)

Waiting for repair

Waiting for repair

Ruptured