Table 4.

Analysis of the effects of contrast agent and technique used (manual vs semi-automated) in quantification of aortic flow and PWV

Technique of analysis	Pre-contrast	Post-contrast	p (<0.05)
Manual
Aortic flow (ml)	62.3 ± 12.8	60.7 ± 12.3	0.06
Arch PWV (ms−1)	7.9 ± 2.0	8.2 ± 2.6	0.61
Aortic PWV (ms−1)	8.1 ± 2.1	8.9 ± 4.2	0.20
Semi-automated
Aortic flow (ml)	59.6 ± 12.1a	58.2 ± 11.8a	0.14
Arch PWV (ms−1)	7.3 ± 1.8a	7.7 ± 2.2	0.21
Aortic PWV (ms−1)	7.5 ± 1.9a	7.7 ± 1.8a	0.45

^aDenotes semi-automatic quantified parameters which were significantly different (p ≤ 0.05) in comparison with manual analysis. PWV, pulse wave velocity.