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. 2022 Sep 9;13:998557. doi: 10.3389/fneur.2022.998557

Table 2.

Measurement and analysis of the hemodynamics.

Variables Ruptured (n = 91) Unruptured (n = 91) p-value Cutoff value
WSS
Min 0.113 ± 0.208 0.266 ± 0.520 0.003 0.259
Max 34.143 ± 28.774 32.827 ± 171.407 0.454
Mean 5.950 ± 6.544 6.964 ± 8.073 0.048 6.417
Ratio 330.839 ± 632.763 133.596 ± 232.752 0.010 247.783
NWSS
Min 0.012 ± 0.023 0.030 ± 0.047 0.001 0.013
Max 3.787 ± 1.871 4.043 ± 1.837 0.972
Mean 0.669 ± 0.435 0.900 ± 0.665 <0.001 0.926
Ratio 330.840 ± 632.751 133.596 ± 238.152 0.011 177.219
WSSG
Min 3.404 ± 9.597 14.478 ± 31.665 0.005 3.708
Max 6,554.117 ± 8,247.413 5,976.740 ± 9,065.646 0.826
Mean 673.116 ± 850.285 828.386 ± 1,086.759 0.065
Ratio 1,971.549 ± 5,849.403 512.353 ± 832.010 0.004 893.180
OSI
Min 0.0002 ± 0.0003 0.0003 ± 0.0003 0.909
Max 0.419 ± 0.093 0.369 ± 0.135 0.001 0.378
Mean 0.020 ± 0.017 0.016 ± 0.012 0.004 0.013
Ratio 1,426.591 ± 1834.415 1,098.070 ± 1,330.190 0.003 1,956.640
CHP
Min 0.001 ± 0.001 0.001 ± 0.001 0.559
Max 0.900 ± 0.119 0.855 ± 0.192 0.005 0.895
Mean 0.138 ± 0.079 0.101 ± 0.071 <0.001 0.087
Ratio 637.680 ± 602.570 577.055 ± 677.818 0.636
RRT
Min 0.003 ± 0.003 0.003 ± 0.003 0.677
Max 4.428 ± 19.238 1.233 ± 4.542 0.047 1.120
Mean 0.054 ± 0.119 0.031 ± 0.055 0.005 0.023
Ratio 1,833.052 ± 6,263.718 483.643 ± 1,559.518 0.042 535.906
LSA 0.063 ± 0.168 0.013 ± 0.050 0.001 0.016

WSS, wall shear stress; NWSS, normalized wall shear stress; WSSG, wall shear stress gradient; OSI, oscillatory shear index; CHP, combined hemodynamic parameter; RRT, relative residence time; LSA, low shear area.