摘要
目的 探讨Ｇａｌｅｎ 静脉血栓的影像学特点。方法 ８ 例Ｇａｌｅｎ 静脉血栓患者均行ＣＴ 扫描，５ 例行ＭＲ扫描，检查时间为３ ～３０ 天。观察并比较不同时间的ＣＴ及ＭＲ表现。结果 ＣＴ表现为双丘脑、双内囊对称性低密度影７ 例，同时并有双基底节对称性低密度影５ 例，ＭＲＩ表现为双丘脑、双内囊及双基底节区对称性长Ｔ１ 、长Ｔ２ 异常信号５ 例；５ 例发病后３ ～１１ 天内于Ｇａｌｅｎ 静脉及直窦起始部可见栓子，ＣＴ表现为高密度，ＭＲ表现为短Ｔ１ 、长Ｔ２异常信号，１４ 天后检查栓子消失。结论 Ｇａｌｅｎ 静脉血栓有特征性的ＣＴ 及ＭＲ表现，即双丘脑、双内囊及双基底节区对称性低密度影和长Ｔ１ 、长Ｔ２ 异常信号，ＣＴ 和ＭＲ 可直接观察栓子及其变化。
Purpose To evaluate the imaging feaature of vein of Galen thrombosis.Methods 8 patients were examined with CT,5 of them had MR imaging.The examinations were performed for period of 3～30 days after the disease came on.The findings of CT and MR imaging were observed and compared for different time.Results On CT,of 8 cases.Symmetric hypodense areas of bilaleral thalami and internal capsules were fund in 7 cases.symmetric hypodese areas of bilateral basal gangalia were simutaneosly seen in 5 cases.On MRI,of 5 cases,symmetric Long T 1 and long T 2 signals of bilaleral thalami,internal capsules and basal ganglias were fund in all cases;Thrombi were seen in vein of Galen and oringinal of straight sinus in 5 cases in a period of 3～11 day after the disease came on.It were displyed hyperdensity on CT and short T 1 and long T 2 signals on MRI and disppeared in a period of 14～30 days after the diseases came on.Conclusion Vein of Galen thrombosis have a special CT and MR appearance,that is symmetric hypodense areas or long T 1 and long T 2 signal of bilaleral thalami,internal capsules and basal ganglias.Thrombus and its changing maybe directly observed on CT and MRI. [
出处
《中国医学影像技术》
CSCD
北大核心
1999年第11期843-845,共3页
Chinese Journal of Medical Imaging Technology
关键词
GALEN静脉
血栓形成
CT
成像
NMR
脑静脉血栓
Vein of Galen\ \ Thrombosis\ \ Tomography,X ray computed\ \ Magnetic resonance imaging
