摘要
目的探讨1.5T磁共振三维可变反转角快速自旋回波(t h r e edimensional sampling perfection with application-optimized contrasts using different flip angle evolution,3D-SPACE)序列在矢状窦旁脑膜瘤术前评价中的价值。方法收集35例经手术病理证实的矢状窦旁脑膜瘤患者,术前均行常规MRI、增强磁共振静脉成像(magnetic resonance venography,CE-MRV)及3D-SPACE扫描,两名观察者对矢状窦旁脑膜瘤进行分型同时观察侧支循环显示情况。结果以手术结果为金标准,CE-MRV及3D SPACE对矢状窦旁脑膜瘤分型的总准确率分别为80.0%、91.4%,3D SPACE分型准确率高于CE-MRV(P<0.05)。CE-MRV与3D SPACE对侧支循环的正确显示率分别为80.6%、82.5%(P>0.05)。结论1.5T磁共振3D-SPACE能够提高矢状窦旁脑膜瘤术前分型的准确率且较清晰显示侧支循环情况,对于矢状窦旁脑膜瘤术前评估具有重要意义。
Objective To evaluate the application value of 1.5T magnetic resonance threedimensional sampling perfection with application-optimized contrasts using different flip angle evolution(3D-SPACE)sequence in preoperative evaluation of parasagittal meningioma.Methods 35 patients with pathological-confirmed parasagittal meningioma were selected.All the patients underwent MRI,Contrast-enhanced magnetic resonance venography(CE-MRV)and 3D-SPACE scanning before operation.The typing and collateral circulation of parasagittal meningioma was observed by two observers.Results According to the golden standard by operation,the total accuracy of CE-MRV and 3D SPACE for parasagittal meningioma typing was 80.0%and 91.4%,respectively,and 3D SPACE was higher than CE-MRV(P<0.05).The correct display rates of collateral circulation by CE-MRV and 3D SPACE were 80.6%and 82.5%(P>0.05),respectively.Conclusion 1.5T MR 3D-SPACE can improve the accuracy of parasagittal meningiomas typing and clearly show the collateral circulation,which has important significance for preoperative evaluation of parasagittal meningioma.
作者
白秀艳
方晓
肖明霞
王娜
张喆
孙晶
王彩杰
杨帆
申林
BAI Xiu-yan;FANG Xiao;XIAO Ming-xia(Department of Radiology,Liaoyang Petro-chemical General Hospital,Liaoyang 111003,Liaoning Province,China)
出处
《中国CT和MRI杂志》
2018年第2期132-135,共4页
Chinese Journal of CT and MRI
关键词
磁共振成像
磁共振静脉成像
三维可变反转角快速自旋回波
矢状窦旁脑膜瘤
Magnetic Resonance Imaging
Magnetic Resonance Venography
Threedimensional Sampling Perfection with Application-optimized Contrasts using Different Flip Angle Evolution
Parasagittal Meningioma
