磁敏感加权成像（SWI）及磁共振静脉血管成像（MRV）技术对脑静脉血栓显像的对比研究

发布时间：2019-01-05 00:04

【摘要】：目的： 1探讨磁敏感加权成像(SWI)及磁共振静脉血管成像(MRV)技术对正常脑静脉系统的显像价值。 2探讨磁敏感加权成像(SWI)及磁共振静脉血管成像(MRV)技术对脑静脉血栓的诊断价值。材料和方法：选取2013年3月至2014年3月期间在中南大学湘雅二医院神经内科就诊,按2006年Ahmed Idbaih的标准经临床及影像诊断为脑静脉血栓的患者20例,其中男性12例,女性8例,年龄8-67岁,平均年龄45+2.22岁。正常组40例,男性17例,女性23例,年龄20-50岁,平均34+1.23岁。两组均进行MRI常规平扫、MRV及SWI序列成像,然后比较SWI和MRV对正常脑静脉系统及脑静脉系统血栓的成像价值。结果： 1SWI及MRV对正常脑静脉系统的成像比较：SWI和MRV对上矢状窦、横窦及直窦的显像率差异无统计学意义(P=I)；MRV对下矢状窦的显像率较SWI高(P0.05),MRV对乙状窦的显像率较SWI高(P0.01),两者差异均具有统计学意义。 MRV和SWI对横窦、乙状窦及直窦的成像质量比较,差异有统计学意义(P0.01)。 SWI及MRV对大脑大静脉及大脑内静脉的显示率差异无统计学意义(P=I)。SWI和MRV对基底静脉的显示率,差异具有统计学意义(P0.01)。SWI对深静脉系统属支显示数优于MRV(P0.01)。正常静脉窦中,横窦变异较多,右侧优势型占47.5%；左侧优势型占23%；双侧基本均衡型占29.5%。深静脉变异中以基底静脉变异多见。 2SWI及MRV对脑静脉血栓显像比较：MRV对脑静脉血栓显示率较SWI高(P0.01),SWI对继发的脑出血及髓静脉扩张显示率较MRV高(P0.01),SWI和MRV对水肿及梗塞显示率差异无显著性。结论：MRV显示静脉窦较SWI清晰,SWI与MRV均能显示大脑大静脉及大脑内静脉,但对于较细小的基底静脉及髓静脉,SWI明显优于MRV。正常脑静脉系统影像解剖变异较多。MRV对脑静脉血栓显像好,SWI具有对脑出血及髓静脉扩张成像的优势。
[Abstract]:Objective: 1 to evaluate the value of magnetic sensitivity weighted imaging (SWI) and magnetic resonance venography (MRV) in the imaging of normal cerebral venous system. 2 to evaluate the diagnostic value of magnetic sensitivity weighted imaging (SWI) and magnetic resonance venography (MRV) in cerebral venous thrombosis. Materials and methods: from March 2013 to March 2014, 20 patients with cerebral venous thrombosis, including 12 males and 8 females, were admitted to the Department of Neurology, Xiangya second Hospital, Central South University. According to the criteria of Ahmed Idbaih in 2006, 20 patients were diagnosed as cerebral venous thrombosis, including 12 males and 8 females. The average age was 45.2.22 years. In the normal group, there were 17 males and 23 females, aged 20-50 years, with an average age of 34. 23 years. MRI, MRV and SWI sequences were performed in both groups, and then the imaging value of SWI and MRV in normal cerebral venous system and cerebral venous thrombosis was compared. Results: there was no significant difference between SWI and MRV in the imaging rate of superior sagittal sinus, transverse sinus and straight sinus between 1SWI and MRV. The imaging rate of MRV in inferior sagittal sinus was higher than that of SWI (P0.05). The imaging rate of), MRV in sigmoid sinus was higher than that of SWI (P0.01). The imaging quality of transverse sinus, sigmoid sinus and straight sinus was significantly different between MRV and SWI (P0.01). There was no significant difference between SWI and MRV in the display rate of cerebral vein and internal cerebral vein. There was no significant difference between). SWI and MRV in displaying basilar vein. The difference was statistically significant (P0.01). SWI was better than MRV in displaying the branch of deep vein system (P0.01). In the normal venous sinus, the transverse sinus varied more, the right dominant type accounted for 47.5%, the left dominant type accounted for 23%, and the bilateral basic equilibrium type accounted for 29.5%. In the variation of deep vein, the variation of basal vein was more common. Comparison of 2SWI and MRV in cerebral venous thrombus imaging: the display rate of MRV in cerebral venous thrombosis was higher than that in SWI (P0.01), SWI higher than MRV in showing cerebral hemorrhage and dilatation of medullary vein (P0.01). There was no significant difference between SWI and MRV in showing edema and infarction. Conclusion: MRV can display venous sinus more clearly than SWI. Both SWI and MRV can display cerebral vein and internal cerebral vein, but SWI is better than MRV. for smaller basal vein and medullary vein. The imaging anatomy variation of normal cerebral venous system is much, MRV is good for cerebral venous thrombosis imaging, SWI has advantages in cerebral hemorrhage and medullary vein dilatation imaging.
【学位授予单位】：中南大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：R445.2

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