目的 观察低场强MRI在新生儿缺 氧缺血性脑病(HIE)诊断中的应用情况， 对比分析其与多层螺旋CT(MSCT)诊断价值 差异。方法 对46例HIE患儿临床资料进行 回顾性分析。所有患儿均接受低场强MRI 和MSCT检查，比较低场强MRI、MSCT与HIE 临床分度的差异性和一致性。结果 新生 儿HIE低场强MRI分度与临床分度差异无统 计学意义(χ2 =1.000，P＞0.05)，Kappa 值0.842。新生儿HIE MSCT分度与临床 分度差异无统计学意义(χ2 =2.778，P＞ 0.05)，Kappa值0.556。新生儿HIE低场强 MRI分度与临床分度一致性优于HIE MSCT 分度。结论 新生儿HIE低场强MRI分度与 临床分度一致性较高，较MSCT更具优势。

Objective To observe the application of low field MRI in the diagnosis of neonatal hypoxic ischemic encephalopathy (HIE), and to compare the difference between low field MRI and multi-slice spiral CT (MSCT). Methods The clinical data of 46 children patients with HIE were analyzed retrospectively. They were given low field MRI and MSCT examination, and the differences and consistency of low field MRI, MSCT and HIE clinical grading were compared. Results There was no significant difference in the low field MRI grading and clinical grading of neonatal HIE (χ2 =1.000, P>0.05), and the Kappa value was 0.842. There was no significant difference in the MSCT grading and clinical grading between the HIE newborns (χ2 =2.778, P>0.05), and the Kappa value was 0.556. The consistency of low field MRI grading and clinical grading of neonatal HIE was better than that of HIE MSCT grading. Conclusion Low field MRI grading of neonatal HIE is consistent with clinical grading, which is of more valuable than MSCT.