课件：脑静脉系统血栓形成.ppt

* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 横窦和乙状窦血栓 (transverse and sigmoid sinus thrombosis) 脑静脉 窦血栓 Caption: A 23-year-old female with headache. CT scan demonstrates a subtle right transverse sinus thrombosis with high attenuation (arrows). MRV demonstrates absent flow in the right transverse sinus, sigmoid sinus, and internal jugular vein. 横窦和乙状窦血栓 (transverse and sigmoid sinus thrombosis) 脑静脉 窦血栓 A 32-year-old postpartum patient with headaches. Axial CT image shows a hypodense left temporal lobe venous infarct. A triangular high-attenuation focus (arrows) posterolateral to the area of infarction represents thrombus within the left transverse sinus. Axial MR venogram demonstrates occlusion of the left transverse sinus, sigmoid sinus, and internal jugular vein. 横窦和乙状窦血栓 (transverse and sigmoid sinus thrombosis) 脑静脉 窦血栓 CT scan demonstrates: a left posterior temporal hematoma in a 38-year-old woman on oral contraceptives. Contrast-enhanced MRI showing lack of filling of left transverse sinus. Axial view of MR venogram demonstrating lack of flow in transverse sinus Coronal view of MR venogram demonstrating lack of flow in the left transverse and sigmoid sinuses. 脑静脉 岩上窦及岩下窦血栓 窦血栓 (superior and inferior petrosal sinus thrombosis) ●岩上窦前起于海绵窦