Results: The chordae in the lumen of superior sagittal sinus was divided into three types: valvelike (47.1%), trabecular (30.6%) and lamellar (22.3%).

• 上矢状窦最后段近窦汇区有纵行板层状纤维索结构，将上矢状窦最后段管腔分为左右两个单独管道，有分流和支撑作用。