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Table 3 Correlations between 3-dimensional peak principal strain amplitude calculations using ECG-gated CTA of the ascending aorta and global thoracic aorta and clinical, hemodynamic and echocardiographic variables using linear regression analysis

From: Three-dimensional thoracic aorta principal strain analysis from routine ECG-gated computerized tomography: feasibility in patients undergoing transcatheter aortic valve replacement

  Ascending Aorta Global Thoracic Aorta
Parameter β p-value β p-value
Clinical     
 Age -0.07 0.76 0.005 0.97
 Gender 2.43 0.41 0.59 0.69
 Height -0.23 0.13 -0.09 0.2650
 Weight 0.04 0.61 0.02 0.68
 Body mass index 0.45 0.09 0.18 0.19
 Body surface area 1.04 0.86 0.57 0.84
 Hypertension 1.85 0.50 -0.001 1.00
 Diabetes mellitus -2.88 0.45 -2.20 0.24
 Hyperlipidemia 0.43 0.87 0.31 0.82
 Coronary artery disease -0.56 0.84 -0.08 0.95
 Prior myocardial infarction 0.86 0.77 0.65 0.66
 Congestive heart failure -1.14 0.68 0.04 0.97
 Stroke 9.89 0.004 4.05 0.02
Hemodynamic     
 Heart rate 0.009 0.94 -0.005 0.93
 Systolic blood pressure 0.03 0.71 0.02 0.68
 Diastolic blood pressure -0.09 0.41 -0.06 0.28
 Mean arterial pressure -0.05 0.69 -0.03 0.59
 Pulse pressure 0.11 0.25 0.07 0.16
Echocardiographic     
 LV ejection fraction 0.07 0.50 0.02 0.67
 LV end-diastolic volume index 0.001 0.99 0.03 0.41
 LV end-systolic volume index -0.002 0.98 0.03 0.49
 AV annulus diameter -0.08 0.85 0.17 0.43
 AV area 15.41 0.0005 8.54 0.00004
 AV mean pressure gradient -0.38 0.0004 -0.19 0.0005
 AV peak pressure gradient -0.23 0.0003 -0.11 0.0005
 Systemic vascular resistance -0.0001 0.49 -0.001 0.30
 Systemic arterial compliance -2.29 0.55 -0.97 0.61
 Systemic arterial elastance -0.64 0.73 -0.61 0.51
 Valvulo-arterial impedance 0.03 0.77 0.01 0.74
  1. AV, aortic valve; LV, left ventricle