Headache attributed to dural arteriovenous fistula .
硬膜动静脉瘘所致的头痛。
Dural avm or avf presents with engorgement of the intracranial venous system .
硬膜动静脉畸形或动静脉瘘可以出现颅内静脉充血。
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。
Objective to estimate the position of the conus medullaris and the dural sac in normal adults and to evaluate its clinical applications .
目的评价成人脊髓圆锥和硬膜囊下端位置正常范围的临床应用价值。
Dural puncture is the common accident and complication of epidural anesthesia , of which the common symptom is headache besides higher blocked level than expected and even spinal anesthesia .
