MRI检查DTI序列对急性脑梗死诊断及预后评估价值研究

Value of DTI Sequence in MRI Examination in the Diagnosis and Prognosis Evaluation of Acute Cerebral Infarction

目的探讨MRI检查中DTI序列对急性脑梗死诊断及预后评估价值。方法回顾分析本院2017年8月至2019年8月收治的88例脑梗死患者的临床资料。对患者M R I图像进行分析,以病理诊断结果为基准,对D TI诊断的灵敏度、特异度、准确度进行判断,在患者随访后3个月实行MRI检查,对预后良好组与预后不良组的FA、Exat、DCavg、VRA情况进行比较。结果与病理结果对照,DTI检查诊断的灵敏度、特异度、准确度分别为97.77%(86/88)、100%(87/87)、98.88%(165/167)。预后良好与预后不良组DCavg、Exa比较差异无统计学意义(P>0.05),预后良好组FA、VRA分别为(0.321±0.101)、(0.113±0.077),明显高于预后不良组(0.189±0.051)、(0.073±0.043),差异有统计学意义(P<0.05)。结论MRI检查DTI序列可提高对急性脑梗死诊断准确率,对预后评估有较高的参考价值,并可为临床治疗方案制定提供可靠的参考依据,值得临床推广。

Objective To explore the value of DTI sequence in MRI examination in the diagnosis and prognosis evaluation of acute cerebral infarction.Methods The clinical data of 88 patients with cerebral infarction admitted to our hospital from August 2017 to August 2019 were retrospectively analyzed.The MRI images of the patients were analyzed.The results of pathological diagnosis were used as a benchmark to judge the sensitivity,specificity,and accuracy of DTI diagnosis.MRI was performed in 3th month after the patient was followed up,and FA,Exat,DCavg,and VRA were compared between the good prognosis group and the poor prognosis group.Results Compared with pathological results,the sensitivity,specificity,and accuracy of DTI examination were 97.77%(86/88),100%(87/87),and 98.88%(165/167),respectively.There was no significant difference in DCavg and Exa between the good prognosis and the poor prognosis group(P>0.05).The FA and VRA in the good prognosis group were(0.321±0.101)and(0.113±0.077),which were significantly higher than those in the poor prognosis group(0.189±0.051)and(0.073±0.043)(P<0.05).Conclusion The DTI sequence in MRI can improve the diagnostic accuracy for acute cerebral infarction,and has a high reference value for prognosis evaluation.It can provide a reliable reference for the making of clinical treatment and It is worthy of clinical promotion.