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1·They are arteriovenous shunts located in the dura that usually involve large dural venous sinuses.

位于硬膜的动静脉分流常常累及大的硬膜静脉窦。

2·Arterial supply is usually through meningeal branches of the external carotid, internal carotid, and vertebral arteries. Drainage is via dural venous sinuses or other dural or leptomeningeal channels.

动脉血供一般是通过颈外动脉、颈内动脉及椎动脉的脑膜分支，分流是经由硬膜静脉窦或其他的硬膜或软脑膜血供。

3·Conclusion MR is an effective technique for measuring the blood flow in transverse sinuses, which can reflect the venous drainage dominance from the point of quantity view.

结论MR是一种有效的横窦血液流量测定方法，可以从“量”的角度反映引流优势。