A Clinical Study of Multimodal MRI Combined with Estroke Artificial Intelligence to Evaluate Arterial Thrombectomy in Late Time Window AIS
Objective To analyze the clinical study of multimodal magnetic resonance imaging(MRI)combined with estroke artificial intelligence to evaluate arterial thrombectomy in late time window acute cerebral infarction(AIS).Methods 104 patients with late time window AIS admitted to our hospital from July 2021 to June 2023 were selected.Arterial thrombectomy was performed in all patients after multimodal MRI combined with estroke artificial intelligence assessment.According to the results of eStroke artificial intelligence evaluation,patients were divided into low infarct group(infarct volume＜21mL),medium infarct group(21mL＜31mL)and large infarct group(31mL＜51mL)according to the infarct volume.In the same period,30 patients with AIS were selected in the time window of emergency thrombectomy in our hospital and included in the control group.Modified cerebral infarction thrombolysis(mTICI)grade was used to evaluate vascular recanalization.The number of thrombectomy,the time of getting out of bed and the time of hospitalization were counted,and the incidence of complications during hospitalization were counted.All patients were followed up for 3 months after discharge,and the death and recurrence of stroke were counted at 90 days.The modified Rankin Scale(mRS)and the National Institutes of Health Neurological Impairment Score(NIHSS)were used to evaluate the neurological prognosis of the patients.Results Compared with the low-infarct group,the vascular revascularization rate in the large-infarct group was lower(P＜0.05),while the vascular revascularization rate in the control group was higher(P＜0.05).Compared with the low infarction group,the number of thrombectomy increased in the control group(P＜0.05).Compared with low infarction group,the complication rate of control group was higher(P＜0.05).Compared with preoperative results,mRS Scores and NIHSS scores in 4 groups were decreased 3 months after operation(P＜0.05)..Compared with low infarction group,mRS Score and NIHSS score were increased in medium infarction group and large infarction group(P＜0.05).Compared with the moderate infarct group,mRS Scores and NIHSS scores in the large infarct group were increased(P＜0.05).Compared with large infarction group,mRS Score and NIHSS score in control group were decreased(P＜0.05).There was no significant difference in mRS Score and NIHSS score between low infarction group and control group(P＞0.05).Conclusion Multi-modal MRI combined with estroke artificial intelligence has a good vascular revascularization rate in late time window AIS thrombectomy,which is conducive to reducing the occurrence of secondary postoperative complications and has a positive effect on improving nerve function.
Acute Cerebral InfarctionMultimodal Magnetic Resonance ImagingEstroke Artificial IntelligenceLate Time WindowArterial Thrombectomy
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