CT Angiography Analysis of Axillary Artery Diameter versus Common Femoral Artery Diameter: Implications for Axillary Approach for Transcatheter Aortic Valve Replacement in Patients with Hostile Aortoiliac Segment and Advanced Lung Disease

Table 2

Diameters of the axillary versus common femoral arteries.

(a) Right axillary artery versus right common femoral artery

	R Ax	R CFA	Mean difference		95% CI
Mean (mm)	6.38	8.26	−1.88	<0.0001	−2.39 to −1.35
Median (mm)	6.2	8	−2
Std. Dev. (mm)	1.57	2.1	1.76
SEM	0.158	0.211
Moderate-to-severe calcification (%)	1.04	17.8		<0.0001

(b) Left axillary artery versus left common femoral artery

	L Ax	L CFA	Mean difference		95% CI
Mean (mm)	6.52	8.2	−1.68	<0.0001	−2.21 to −1.17
Median (mm)	6.2	8	−2
Std. Dev. (mm)	1.52	2.09	1.74
SEM	0.156	0.214
Moderate-to-severe calcification (%)	2.1	19.8		<0.0001