Correlation of ADC Value,FA Value with the Degree of Vascular Stenosis in TIA Patients and the Predictive Value of Combined Detection for the Occurrence of ACI in TIA Patients
Objective To investigate the correlation of diffusion weighted imaging(DWI)parameter apparent diffusion coefficient(ADC)value,diffusion tensor imaging(DTI)parameter fractional anisotropy(FA)value with the degree of vascular stenosis in transient ischemic attack(TIA),and the predictive value of combined detection for the occurrence of acute cerebral infarction(ACI)in TIA patients.Methods A total of 110 TIA patients admitted to the Second People's Hospital of Henan Province from January 2022 to January 2023 were selected,and all patients underwent DWI and DTI examinations.The ADC and FA values were compared among different degrees of vascular stenosis in TIA patients,the correlation of ADC and FA values with the degree of vascular stenosis in TIA patients were analyzed.According to whether TIA patients develop ACI within 3 months after admission,they are divided into ACI group and non ACI group.The predictive value of combined detection of ADC and FA values for the occurrence of ACI in TIA patients was analyzed.Results The ADC and FA values of TIA patients with mild,moderate,and severe vascular stenosis were compared:severe＜moderate＜mild,with significant differences in pairwise comparison(P＜0.05);the ADC and FA values of TIA patients were negatively correlated with the degree of vascular stenosis(r=-0.786,-0.679,P＜0.05).The ADC and FA values in the non ACI group were significantly higher than those in the ACI group(P＜0.05).The AUC and sensitivity of the combined detection of ADC value and FA value predictive value for the occurrence of ACI in TIA patients was higher than that of DC value and FA value alone(P＜0.05).Conclusion ADC and FA values can be used to evaluate the degree of vascular stenosis in TIA patients,and combined detection has high predictive value for the occurrence of ACI in TIA patients.In clinical practice,ADC and FA values can be obtained through DWI and DTI examinations to evaluate the severity of vascular stenosis in TIA patients,predict the possibility of ACI occurrence,and provide a basis for early intervention measures in clinical practice,thereby reducing the occurrence of ACI and improving the prognosis of TIA patients.
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