脑静脉窦血栓形成的MR诊断及MRV的应用  

MR findings and application of MRV in intracranial venous sinus thrombosis

作　　者：胡若凡[1] 冯宇欣 常香惠[1] 刘品霓[1] 张冬梅[1] 

机构地区：[1]广东省深圳市第二人民医院放射科,518035 [2]广东省深圳市盐田区人民医院放射科

出　　处：《卒中与神经疾病》2009年第1期37-40,共4页Stroke and Nervous Diseases

摘　　要：目的探讨脑静脉窦血栓形成（cerebral venous sinus thrombosis, CVST）的MR征象及磁共振脑静脉系血管成像（magnetic resonance venography, MRV）的技术方法。方法4例脑静脉窦血栓形成患者，男2例，女2例，年龄32～51岁，全部经常规MRI及MRV检查，2例患者行增强扫描，全部患者经DSA检查证实。结果4例患者平扫SE序列均可见静脉窦内正常流空信号消失，代之以异常等或高信号。出血性脑梗死3例；广泛脑肿胀及脑水肿1例。MR增强可见静脉窦异常低信号或闭塞；对比增强磁共振血管造影检查（contrast enhanced magnatic resonance venography, CE-MRV）见受累静脉窦腔内血流信号不规则或信号完全消失。结论MRI结合3D-CE-MRA是诊断脑静脉窦血栓形成的有效手段。Objective To discuss the MR feature of cerebral venous sinus thrombosis and to investigate the technique methods of intraeranial MR venography （MRV）. Methods 4 cases of cerebral venous sinus thrombosis were discussed including 2 cases of male and 2 cases of female, aged from 32 to 51 years old, MRI and MRV were performed in all 4 cases, Gd-DTPA enhancement scans were performed in 2 cases. The diagnosis of 4 cases were proved by DSA images. Results In all 4 cases, thrombosis in the sinus showed hyper or isointensity without flow void signin SE sequence. Hemorrhage infarction was seen in 3 cases. Brian swelling and edema was seen in 1 case. Hypointense lesion in the sinus was found on contrast MRI. The signs of cere bral venous sinus thrombosis in 3D-CE-MRV included loss of vascular flow signal or a frayed appearance of the venous sinus. Conclusions 3D-CE-MRV combined with MRI are effective methods in the diagnosis of cerebral venous sinus thrombosis.

关 键 词：脑静脉窦血栓 磁共振成像 磁共振静脉系血管成像 

分 类 号：R741[医药卫生—神经病学与精神病学] R445[医药卫生—临床医学]