目 的 探讨磁敏感加权成像 (susceptibility weighted imaging, SWI)在新生儿 MRI 检查中判断颅内出血 的临床应用价值。方法 收集我院2012 年1月至2016年6月48例行 MRI 检查诊 断为颅内出血的新生儿进行回顾性分 析。结果 48例颅内出血的新生儿中26例 (54.2%)病变表现为T1WI呈稍高信号， T2WI呈低信号，FLAIR呈低或高信号， SWI呈低信号，部分SWI显示的病灶数量 更多；22例(45.8%)病灶仅SWI有显示， 呈低信号。结论 SWI序列较常规MR序列能 更敏感的显示微小出血灶，弥补了常规 MR 序列的不足，在判断新生儿颅内出血 及指导临床治疗起到极为重要的作用。

Objective To explore the value of susceptibility weighted imaging(SWI) in the clinical application of MRI examination in neonatal intracranial hemorrhage. Methods Retrospective analysis of 48 cases of neonatal intracranial hemorrhage in our hospital from January 2012 to June 2016 were collected and diagnosed as intracranial hemorrhage. Results Among the 48 cases of intracranial hemorrhage, 26 cases (54.2%) showed a slightly higher signal of T1WI.，T2WI showed low signal, FLAIR showed low signal or high signal, SWI showed low signal, part of SWI showed more lesions, In 22 cases (45.8%), only SWI showed a low signal. Conclusion SWI sequence is more sensitive than the conventional MR sequence to show the micro hemorrhage, to make up for the deficiency of conventional MR sequence, It plays an important role in judging the intracranial hemorrhage of the newborn and guiding the clinical treatment.