脑静脉窦血栓形成的低场磁共振诊断价值  

The diagnostie value of Low field MRI in Cerebral venous sinus thrombosis

作　　者：张建珂 

机构地区：[1]河南省长垣县人民医院MRI室,河南长垣453400

出　　处：《医学信息（中旬刊）》2010年第8期1975-1976,共2页Medical Information Operations Sciences Fascicule

摘　　要：目的:评价低场MRI脑静脉窦血栓形成的诊断价值。方法:回顾性分析7例脑静脉窦血栓形成的临床与MRI资料。结果:常规MRI检查表现为静脉窦流空信号消失,急性期T1WI高信号,T2WI低信号;亚急性期T1WI、T2WI均呈高信号;慢性期T1WI、T2WI信号减低。MRV检查表现为受累静脉窦血流信号减弱或消失。4例同时行CT和MRI检查的患者11个静脉窦受累,CT检出率为54%,MRI检出率为100%。结论:低场磁共振对静脉窦血栓形成具有高度敏感性,是静脉窦血栓形成的首选检查方法。Objective：To assess the value of low field MRI in the diagnosis of cerebal venous sinus thrombosis.Methods：7 cases of CVST patients with clinical and MR date were retrospectively analyzed.Results：Normal flow empty effeot elisappeared on conventional MRI scans acute phase showed maderate signal on T 1 WI and low signal on T2 WI;Subacute phase trpically elemon strated high signal on T1 W1 and T2 WI;Signal intensity gradually became lower in chronoc phase,presentig variably;The signal of the involed venous sinus disappeared or meakened on MRV.The positivt rate of MRI（100%）was higher than of CT（54%）in the 4 patients who were scanned by both CT and MRI.Conclusion：Low field MRI canbe viewed as the primary methods for examining cerebyal lenous sirus thrombosis because of thrombosis because of the secsitiving.

关 键 词：静脉窦血栓 脑静脉闭塞 磁共振血管成像 

分 类 号：R743.32[医药卫生—神经病学与精神病学]