敏感性加权成像对窦静脉血栓的诊断价值

Akram Bagheri, F. Faeghi, M. Rabbani, K. Jabari
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引用次数: 1

摘要

目的:基于敏感性加权成像(SWI)的磁共振静脉造影利用静脉中的脱氧血红蛋白作为内在造影剂。脱氧血红蛋白,氧合血红蛋白和实质之间的磁化率差异导致了良好的静脉对比。本研究的目的是评价不同磁共振成像序列和敏感性加权成像对窦静脉血栓形成的可视化效果。材料与方法:本横断面研究于2013年8月至2014年9月在伊朗伊斯法罕市Shafa医学影像中心进行,对12例窦静脉血栓患者进行MRI、SWI和相对比磁共振静脉造影(PC-MRV)分析。结果:在所有患者中,亚急性上矢状窦、横窦和乙状窦血栓形成在敏感性加权成像中最成功。仅1例亚急性左横窦、乙状窦及左颈静脉血栓形成可见T1W。6例患者在亚急性期T2W可见窦静脉血栓形成。PC-MRV均显示急性和亚急性窦静脉血栓形成。结论:敏感性加权成像对亚急性上矢状窦、横窦及乙状窦血栓形成有较高的诊断价值。
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Diagnostic Value of Susceptibility Weighted Imaging in Sinus Venous Thrombosis
Aims: Magnetic resonance venography based on susceptibility weighted imaging (SWI) utilizes deoxygenated hemoglobin in veins as an intrinsic contrast medium. Magnetic susceptibility difference between deoxygenated hemoglobin, oxygenated hemoglobin and parenchyma lead to an excellent venous contrast. The purpose of this study was to evaluate the different magnetic resonance imaging sequences and susceptibility weighted imaging in the visualization of sinus venous thrombosis. Materials & Methods: This cross-sectional study was performed in Shafa Medical Imaging Center in Isfahan City, Iran, from August 2013 to September 2014 and 12 patients with sinus venous thrombosis were analyzed using MRI, SWI, and Phase contrast-magnetic resonance venography (PC-MRV). Findings: In all patients, sub-acute superior sagittal sinus, transverse and sigmoid sinuses thrombosis was most successfully detected during the susceptibility weighted imaging. In only one case, the sub-acute left transverse and sigmoid sinuses and left jugular vein of thrombosis was discernible with T1W. In 6 patients, sinus venous thrombosis was discernible with T2W in the sub-acute stage. PC-MRV showed the acute and sub-acute sinus venous thrombosis in all patients. Conclusion: Susceptibility weighted imaging has a high diagnostic value for detecting sub-acute superior sagittal sinus, transverse and sigmoid sinuses thrombosis.
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