摘要
目的 利用虚拟现实技术（VR）观测上矢状窦（SSS）及桥静脉（BrV）的形态特征,并探讨其临床意义. 方法 选择南京军区福州总医院神经外科自2011年10月至2013年3月收治的43例上矢状窦旁脑膜瘤（PSM）患者（PSM组）及21例无颅内静脉系统病变的三叉神经痛或面肌痉挛患者（正常组）.VR环境下,观测2组患者SSS及窦旁BrV的形态特征,分析皮质静脉数量、直径在正常组双侧和SSS前、中、后1/3段间以及2组之间的差异. 结果 2组患者中,首次共观察到4例患者的SSS后部有形态变异.BrV注入SSS的方式以逆行最多,主要集中在SSS的中、后1/3段;SSS前1/3段的BrV有多种注入SSS的方式,以垂直方式最多.正常组皮质静脉的数量和直径,在SSS双侧差异无统计学意义（P＞0.05）;皮质静脉数量在SSS前、中、后1/3段之间差异有统计学意义（P＜0.05）,静脉直径差异无统计学意义（P＞0.05）.PSM组的皮质静脉数量少于正常组,直径也小于正常组,差异均有统计学意义（P＜0.05）.随着PSM的生长,SSS和皮质静脉受侵犯程逐渐加重,影响静脉回流,导致侧支静脉逐渐增多和变复杂. 结论 SSS及BrV存在一定的变异性,BrV注入SSS的方式可能与颅内静脉系统的血流动力学有关.VR技术可以清晰、立体地观察SSS和皮质静脉,解析PSM导致的静脉循环改变.
Objective To investigate the morphological characteristics of superior sagittal sinus （SSS） and bridging vein （BrV） with virtual reality （VR） technology and their clinical significances.Methods Forty-three patients with parasagittal meningioma （PSM group） and 21 patients with trigeminal neuralgia or hemifacial spasm who had no intracranial venous system diseases （normal group）,admitted to our hospital from October 2011 to March 2013,were chosen.The morphological characteristics of SSS and parasagittal BrV of patients from the 2 groups were observed,which was finished in the VR workstation.The number and diameter differences of cortical veins between the 2 groups,and bilatelal side and the first,middle and third 1/3 of SSS of normal group were analyzed.Results Among the patients from the 2 groups,4 having SSS extremity with morphological variation were observed firstly.The direction of BrV entering the SSS mainly was retrograde,which concentrated in the middle and third 1/3 of SSS.There were many directions of BrV entering the SSS in the first 1/3 of SSS,and the direction mostly was perpendicular.In normal group,there were no statistical differences of number and diameter in the bilatelal cortical veins （P〉0.05）; in the first,middle and third 1/3 of SSS,there was statistical difference of cortical veins number （P〈0.05）,but no difference of diameter （P〉0.05）.The number and diameter of cortical veins of PSM group were under the normal group,with statistically significant difference （P〈0.05）.With the growth of PSM,violations of SSS and cortical venous gradually aggravated,affecting venous return,which resulted in increase number and complication of collateral veins.Conclusions There is certain variability of SSS and related BrV.The direction of BrV entering the SSS may be associated with intracranial venous system hemodynamic.It is clear and three-dimensional to observe SSS and cortical veins in the help of VR,and to analyze the venous circulation changes caused by PSM.
出处
《中华神经医学杂志》
CAS
CSCD
北大核心
2015年第3期259-264,共6页
Chinese Journal of Neuromedicine
基金
福建省科技计划重点项目（2010Y0043、2014Y0036）
致谢感谢南京军区福州总医院影像科钟群副教授、曹尚医师及马明主管技师在影像采集方面给予的技术支持
关键词
上矢状窦
脑膜瘤
桥静脉
虚拟现实技术
Superior sagittal sinus
Meningioma
Cortical vein
Virtual reality
