Neurological Surgery 脳神経外科52巻3号

2024年05月発行

特集 脳血管内治療に必要な血管解剖学 Ⅱ 静脈編

上矢状・下矢状静脈洞の解剖

著者： 寺田愛子¹ 石黒友也¹

所属機関： ¹大阪市立総合医療センター脳血管内治療科

ページ範囲：P.579 - P.586

Point
・上矢状静脈洞（SSS）には，上大脳静脈系の皮質静脈が架橋静脈を介して流入するほかに，外側にあるlateral venous lacunaを介して硬膜・板間静脈が流入する．
・架橋静脈は，硬膜貫通部から直接SSSに流入するものと，dural venous channel（venous lake）を介するものがあり，これらはlateral venous lacunaの下方からSSS外側に流入する．
・SSSのvariationsは，胎児期のsagittal plexusとmarginal sinusの正中での融合および消退の程度によって生じる．

参考文献

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