Thoracic aortic wall shear stress atlases in patients with bicuspid aortic valves

Table 1 Age, aortic diameter and mean WSS in the AAo, arch and DAo of the cohort-specific WSS atlases.

	Controls	BAV	BAV with Dilation	BAV Stenosis
Age+ (y)	50 ± 14	44 ± 10	53 ± 10	44 ± 10
SOV diameter* (cm)	3.0 ± 0.5	3.5 ± 0.4	4.0 ± 0.3	3.7 ± 0.4
MAA diameter* (cm)	2.9 ± 0.5	3.4 ± 0.4	4.4 ± 0.3	3.4 ± 0.4
Mean WSS AAo* (Pa)	0.51 ± 0.16	0.55 ± 0.24	0.71 ± 0.46	0.61 ± 0.37
Mean WSS arch* (Pa)	0.50 ± 0.14	0.63 ± 0.18	1.05 ± 0.27	0.73 ± 0.32
Mean WSS Dao* (Pa)	0.64 ± 0.10	0.64 ± 0.12	1.16 ± 0.27	0.67 ± 0.14
Comparison		BAV vs. Controls	BAV with dilation vs. Controls	BAV stenosis vs. Controls
Percentage significant difference AAo (%)**		28	41	37
Percentage significant difference arch (%)**		20	86	35
Percentage significant difference DAo (%)**		0	67	0
Median/mean angle AAo (°)*		23/32	34/46	26/43
Median/mean angle arch (°)*		9/13	14/19	15/19
Median/mean angle DAo (°)*		6/6	6/7	6/7

Percentage significant difference shows the percentage of the area of the AAo, arch and DAo, where the difference with the control atlas on the shared geometry was significant. The median/mean angle represents the median and mean of the angle difference of the WSS vector with the control atlas on the shared geometry.
SOV = Sinus of Valsalva, MAA = Mid-Ascending aorta, AAo = Ascending aorta, DAo = Descending aorta + Not significant across cohorts using a Kruskal-Wallis test (p = 0.3) *Significant across cohorts using a Kruskal-Wallis test (p < 0.05) ** Significance tested with a Wilcoxon rank sum test (p < 0.05)

ISSN: 1532-429X