磁敏感加权成像技术用于诊断儿童脑血管畸形临床价值研究

Clinical application of susceptibility weighted imaging in cerebral vascular malformation of children

目的探讨磁敏感加权成像(susceptibility-weighted imaging,SWI)在儿童脑血管畸形中的临床应用价值。方法回顾性分析2007年9月至2009年9月于解放军第306医院经临床及影像检查证实的27例脑血管畸形患儿(其中静脉血管瘤16例,海绵状血管瘤8例,动静脉畸形3例)的磁共振影像资料。比较SWI序列与其他常规序列对病变检测及显示的差异。结果所有27例脑血管畸形患儿的病灶在SWI中均清晰显示。SWI显示引流静脉及髓静脉方面明显优于常规序列。SWI对多发海绵状血管瘤病灶的检出数目也明显多于常规序列,差异有统计学意义(P<0.05)。结论 SWI成像能够较常规序列更敏感地发现静脉血管瘤、海绵状血管瘤及动静脉畸形等病变,是诊断儿童脑血管畸形的可靠方法,具有很高的临床应用价值,应作为儿童脑血管畸形的常规检查序列。

Objective To evaluate the diagnostic value of susceptibility weighted imaging （SWI） in cerebral vascular malformation of children. Methods The imaging data of MRI were retrospectively analyzed in all twenty-seven cases, which included 16 cases of venous angioma, 8 cases of cavernous angioma and 3 cases of arterio-venous malformation. The comparison of SWI and conventional MR sequences was obtained. Results The dilated draining veins and medulla veins were displayed well on SWI sequence. More brain cavernous angioma lesions could be detected on SWI than those on conventional MR sequences （P 〈 0.05）. Conclusion SWI can detect lesions of venous angioma, cavernous angioma and arterio-venous malformation more sensitively than other sequences, which is a reliable diagnostic technique for cerebral vascular malformation of children. SWI has higher clinical value, and should be the routine sequence in the MRI examination.