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. 2023 Sep 28;14:1264791. doi: 10.3389/fneur.2023.1264791

Table 2.

Comparison of vascular wall characteristics and perfusion parameters between the TIA group and AIS group.

TIA group (n = 65) AIS group (n = 47) x2/t/Z p
IPH (n/%) 22/ 33.8 15/ 31.9 0.046a 0.830
SQI 1.36 ± 0.41 1.55 ± 0.46 −2.268b 0.025*
ER 0.63 ± 0.51 0.85 ± 0.54 −2.215b 0.029*
Enhancement grade (n/%) 5.874a 0.053
0 12/ 18.5 2/ 4.3
1 45/ 69.2 35/ 74.5
2 8/ 12.3 10/ 21.3
WA 4.67 (3.46, 6.87) 5.23 (3.00, 6.92) −0.024c 0.981
NWI 0.84 (0.74, 0.91) 0.83 (0.54, 0.93) −0.027c 0.979
Remodeling mode (n/%) 0.700a 0.403
PR
Non-PR
28/ 43.1
37/ 56.9
24/ 51.1
23/ 48.9
Stenosis rate 0.73 (0.45, 0.88) 0.74 (0.46, 0.92) 0.027c 0.979
Perfusion of lesion area
rCBF 39.59 (25.02, 51.16) 30.62 (12.06, 43.68) −1.630c 0.103
rCBV 436.83 (296.66, 552.53) 403.96 (194.73, 653.36) −0.345c 0.730
MTT (s) 11.10 (8.99, 15. 52) 15.20 (10.18, 19.96) −2.792c 0.005*
TPP (s) 25.19 (21.92, 28.85) 28.49 (25.93, 34.79) −3.381c 0.001*

a, x2 value; b, t value; c, Z value; *, the difference was statistically significant.

IPH, intraplaque hemorrhage; SQI, standardized plaque index; ER, enhancement ratio; WA, wall area; NWI, normative wall index; RI, remodeling index; rCBF, relative cerebral blood flow; rCBV, relative cerebral blood volume; MTT, mean transit time; TPP, time to peak.