磁共振静脉成像在小脑幕脑膜瘤术中的指导意义

发布时间：2018-04-27 23:15

本文选题：小脑幕脑膜瘤 + 磁共振静脉成像　；参考：《中国微创外科杂志》2015年03期

【摘要】：目的评价磁共振静脉成像(magnetic resonance venography,MRV)显示小脑幕脑膜瘤侵犯静脉窦的准确性,探讨MRV在小脑幕脑膜瘤术中的指导意义。方法回顾分析2009年10月~2014年4月我科经显微手术治疗的小脑幕脑膜瘤36例资料,术前均行头颅MRV,成像技术包括无需造影剂的时间飞跃法和相位对比法,以及需造影剂的对比增强法,扫描后采用最大强度投影后处理成像,部分静脉区域根据需要加做多平面重建成像,最后观察静脉窦的显示情况及其与小脑幕脑膜瘤的关系,并与术中所见结果对比。结果 36例小脑幕脑膜瘤患者中,MRV对静脉窦受侵部位的显示与术中所见完全一致;MRV诊断静脉窦受侵犯的敏感性为92.6%(25/27),特异性为100%(9/9),准确率为94.4%(34/36)。MRV对小脑幕脑膜瘤相关侧支静脉吻合显示的敏感性为42.9%(9/21),特异性为86.7%(13/15),准确率为61.1%(22/36)。结论MRV可准确地显示小脑幕脑膜瘤侵犯静脉窦的部位及程度,指导手术方案的选择,具有重要临床意义。
[Abstract]:Objective to evaluate the accuracy of magnetic resonance resonance venography (resonance) in showing the involvement of tentorial meningiomas into the venous sinuses, and to explore the guiding significance of MRV in the operation of tentorial meningiomas. Methods from October 2009 to April 2014, 36 cases of cerebellar tentorial meningioma treated by microsurgery were retrospectively analyzed. MRVs were performed before operation. The imaging techniques included time leapfrogging method and phase contrast method without contrast agent. The contrast enhancement method of contrast medium was used, the maximum intensity projection was used after scanning, and the multiplanar reconstruction was performed in some venous regions according to the need. Finally, the display of venous sinus and its relationship with tentorial meningioma were observed. The results were compared with the operative results. Results in 36 patients with tentorial meningioma, the sensitivity of MRV in the diagnosis of venous sinus invasion was 92. 6% 25 / 27, the specificity was 100% 9 / 9, and the accuracy rate was 94.4%(34/36).MRV for the associated side of cerebellar tentorial meningioma. The sensitivity of the anastomosis was 42.9%, the specificity was 86.7%, and the accuracy was 61.1% 22 / 36%. Conclusion MRV can accurately show the location and extent of cerebellar tentorial meningioma invading the venous sinuses and guide the choice of surgical scheme, which is of great clinical significance.
【作者单位】：新疆医科大学第一附属医院神经外科;
【分类号】：R445.2;R739.45

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