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. 2013 Apr;34(4):816–822. doi: 10.3174/ajnr.A3288

Table 2:

P values for size (3 groups, Kruskal-Wallis 1-way analysis of variance by rank test) and shape (2 groups, Wilcoxon signed-rank test) versus hemodynamic variables

wsstasa wssta90 velsata rrtsa totime pressuresata pressurergta
Size .069a .015b .013b .244 .195 .313 .202
Size (S/LG)c .036b .004b .002b .076a .142 .304 .188
Shape .055 .047a .065a 052 .047b .278 .135

Note:—wsstasa indicates WSS on the aneurysm wall; wssta90, maximum WSS; velsata, time and spatial-average velocity in the aneurysm; rrtsa, spatial average of relative residence time in the aneurysm; totime, aneurysm volume turnover time; pressuressata, spatial average intra-aneurysmal pressure; pressuregta, pressure range.

a

Significant to the 10th percentile.

b

Significant to the 5th percentile.

c

Row size (S/LG) corresponds to Wilcoxon signed-rank test between small and large aneurysms.