Application of 3.0T Siemens Magnetic Resonance Examination in the Prediction of Vascular Recanalization After Thrombolysis in Acute Cerebral Infarction
Objective:To analyze the application of 3.0T Siemens magnetic resonance examination in predicting vascular recanalization after thrombolysis in acute cerebral infarction.Methods:74 patients with acute cerebral infarction admitted to our hospital from May 2022 to May 2023 were selected,all of whom received intravenous thrombolysis and were divided into recanalization group and non-recanalization group according to their vascular recanalization.The 90-day modified Rankin scale(mRS)score was divided into good prognosis group and poor prognosis group.fMRI parameters of each group were compared,and the predictive efficacy of fMRI parameters was evaluated using receiver operating characteristic curve(ROC).Results:rCBV,MTT of ischemic penumbra and ADC of infarction core in recirculation group were lower than those in no recirculation group,and the activation rate of SMC region in recirculation group was higher than that in no recirculation group(P<0.05).The rCBV,MTT and ADC of infarction core in good prognosis group were lower than those in poor prognosis group,and the activation rate of SMC region was higher than that in poor prognosis group(P<0.05).Among the 74 patients,41 cases,accounting for 55.41%,were revascularized after intravenous thrombolysis;There were 12 patients,accounting for 16.22%,whose blood flow TICI grade reached grade 1 after intravenous thrombolysis.At 90 days after thrombolysis,there were 44 cases,accounting for 59.46%of the patients with mRS scores between 0-2,and the good prognosis rate was 59.46%.The results showed that the sensitivity,specificity,accuracy,positive predictive value and negative predictive value of vascular recanalization were 83.87%,77.62%,80.79%,82.75%and 81.52%,respectively.The sensitivity,specificity,accuracy,positive predictive value and negative predictive value of the outcome with poor prognosis were 89.91%,84.61%,86.92%,88.13%and 88.68%,respectively.Conclusion:3.0T Siemens magnetic resonance examination has a high efficacy in the prediction of vascular recanalization after thrombolysis in acute cerebral infarction,and can provide clinical reference.
3.0T Siemens magnetic resonanceacute cerebral infarctionintravenous thrombolysisvascular recanalizationforecast