磁敏感加权成像在新生儿缺氧缺血性脑病中的应用

目的：探讨磁敏感加权成像（SWI）在新生儿缺氧缺血性脑病中的应用价值。方法：对临床拟诊缺氧缺血性脑病（HIE）的105例新生儿行头颅横断面液体衰减反转恢复序列（FLAIR）、快速自旋回波（FSE）、扩散加权图像（DWI）及磁敏感加权成像（SWI）,重点观察SWI对新生儿HIE出血性病灶检出的敏感性。结果：SWI能很好显示HIE伴发的出血灶,尤其是在室管膜生发基质以及脑室内出血的显示率明显高于其他扫描序列。结论：SWI对新生儿HIE伴发的出血,尤其慢性期、微小出血灶以及静脉病变的显示优势明显,而这些信息直接与患儿的预后密切相关,因此它是常规扫描序列的重要补充,有必要将SWI列为HIE的扫描序列。

Application of susceptibility weighted imaging in hypoxic-ischemic encephalopathy

Objective:To investigate the value of susceptibility weighted imaging(SWI) in hypoxic-ischemic encephalopathy(HIE) with hemorrhage.Methods:One hundred and five neonates who suspected of having HIE underwent MR scanning at a 3.0T MR scanner by the sequence as fluid attenuation inversion recovery(FLAIR),fast spin-echo(FSE),diffusion weighted imaging(DWI) and SWI.We highlight the value of SWI to detect hemorrhage lesions in HIE.Results:SWI can reveal hemorrhage lesions in HIE.This unique MR sequence was more s...