Suzuki Y, Ikeda H, Shimadu M, Ikeda Y, Matsumoto K
Department of Neurosurgery, Showa University, School of Medicine, 5-8 Hatanodai 1, Shinagawa-ku, Tokyo 142-8666, Japan.
AJNR Am J Neuroradiol. 2001 Apr;22(4):670-6.
The basal vein of Rosenthal (BVR) presents with many variations because of its origin in the secondary longitudinal anastomoses between embryonic veins. The variations were evaluated by 3D CT angiography imaging.
Three-dimensional CT angiograms in the axial stereoscopic view and other directions constructed by the voxel transmission method and maximum intensity projection (MIP) images were obtained in 500 sides of 250 patients.
The BVR flowed into the great vein of Galen in 87.8%, but the anastomoses between the first and second segments were not confirmed in 36.9% of this type. The first segments with hypoplastic or aplastic anastomoses flowed into the cavernous sinus or the sphenoparietal sinus. Therefore, typical BVRs with these anastomoses accounted only for 55.4% of all sides. More than one fourth of the typical type also entered the anterior veins such as the cavernous sinus. Drainage was to the lateral mesencephalic vein in 5.6%, peduncular vein in 1.6%, and lateral or medial tentorial sinus in 5.0%.
Variations of the BVR can be classified on the basis of the five drainage pathways formed during the early embryonic stage. Three-dimensional CT angiography can show the stereoscopic anatomy and the main drainage routes, but not hypoplastic veins, which are only visible on MIP images.
由于罗森塔尔基底静脉（BVR）起源于胚胎静脉之间的次级纵向吻合，其存在多种变异。通过三维CT血管造影成像对这些变异进行评估。
对250例患者的500侧进行体素传输法构建的轴向立体视图及其他方向的三维CT血管造影，并获得最大密度投影（MIP）图像。
87.8%的BVR汇入大脑大静脉，但此类型中36.9%未证实第一段与第二段之间存在吻合。第一段吻合发育不全或未发育的BVR汇入海绵窦或蝶顶窦。因此，具有这些吻合的典型BVR仅占所有侧的55.4%。超过四分之一的典型类型还汇入海绵窦等前部静脉。5.6%引流至中脑外侧静脉，1.6%引流至脑桥静脉，5.0%引流至小脑幕外侧或内侧窦。
BVR的变异可根据胚胎早期形成的五种引流途径进行分类。三维CT血管造影可显示立体解剖结构和主要引流途径，但无法显示发育不全的静脉，其仅在MIP图像上可见。
