摘要
目的：探讨ＣＴ及ＭＲＩ对Ｇａｌｅｎ静脉血栓的诊断价值。材料和方法：８例患者行ＣＴ／ＭＲＩ扫描，观察、比较发病后３～３０天的影像及其变化。结果：ＣＴ主要表现为双侧丘脑、内囊及基底节区的对称性低密度（７／８）；ＭＲＩ主要表现为双侧丘脑、内囊及基底节区对称性长Ｔ_１、长Ｔ_２及质子密度高信号（４／４）；７例发病后３～１１天行ＣＴ或ＭＲＩ检查，５例在Ｇａｌｅｎ静脉及直窦起始部见静脉栓子， ＣＴ表现为高密度， ＭＲＩ的影象变化比较复杂。 １３天后栓子均消失。结论： Ｇａｌｅｎ静脉血栓的ＣＴ及ＭＲＩ表现有其特征性，能为临床诊断提供可靠依据。
Purpose: to evaluate the value of CT and MR in diagnosis of GVT. Materials and Methods: 8 patients were examined with CT/MR. The findings of CT and MR imaging were observed and compared for period 3 - 30 days after the onset of the disease. Results: The main demonstration of GVT on CT were bilateral symmetric hypodesity of thalami, internal capsules and hasal gangalia (7/8);on MRI GVT mainly presented bilateral symmetric; long T_1, long T_2 signals and high signals of N(H) (4/4); Thrombi were seen within vein of Galen and original of straight sinus in 5 cases in a pened of 3 - 11 days after onset of the disease, it were displayed hyperdensity on CT and varied complicatedly on MRI, and disappeared after 13 days. Conclusion: CT and MRI findings of GVT are characteristic, and may be reliable evidences for clinical diagnosis of GVT.
出处
《中国医学影像学杂志》
CSCD
2000年第3期170-172,共3页
Chinese Journal of Medical Imaging
