Relation between carotid vulnerable plaques and peripheral leukocyte: a case-control study of comparison utilizing multi-parametric contrast-enhanced ultrasound

Table 2 Comparison of CEUS parameters of carotid plaques between the two groups

Item	Symptomatic patients (N = 62)	Asymptomatic patients (N = 54)	t-value	P-value
P_TIC (dB)	55.08 ± 14.57	42.92 ± 14.63	9.628	<0.001
M_TIC (dB)	25.29 ± 8.89	21.88 ± 8.15	1.986	0.046
P_FC	25.24 ± 8.92	23.89 ± 8.09	1.995	0.041
S_FC (1/s)	0.71 ± 0.27	0.20 ± 0.11	8.489	<0.001
AUC_FC (1/s)	17.22 ± 8.38	4.40 ± 1.97	7.292	<0.001

P_TIC peak of time-intensity curve, M_TIC mean of time-intensity curve, P_FC peak of fitting curve, S_FC sharpness of fitting curve, AUC_FC area under the fitting curve; n, number

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