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

Table 4 Independent correlates of 3-dimensional peak principal strain amplitude calculations using ECG-gated CTA for the ascending aorta and global thoracic aorta

	Ascending Aorta		Global Thoracic Aorta
Parameter	β	p-value	β	p-value
Age	-0.02	0.91	0.05	0.61
Gender	3.05	0.15	0.89	0.37
Hypertension	0.08	0.97	-0.65	0.51
Stroke	8.85	0.03	3.72	0.046
Heart rate	-0.04	0.75	0.003	0.95
Pulse pressure	-0.03	0.75	0.009	0.86
Left ventricular ejection fraction	-0.06	0.47	-0.04	0.31
Aortic valve area	14.41	0.008	3.73	0.003
Valvulo-arterial impedance	0.02	0.80	-0.004	0.93
Model-adjusted r²	0.58	0.015	0.608	0.012

The global r² of the model represents the amount of variance accounted for by these correlates

ISSN: 1471-2261