Many causative factors have been implicated including trauma, coagulopathies, rupture of arteriovenousmalformations, vertebral body hemangiomas, hypertension, and pregnancy.
诱发因素包括许多：创伤、凝血病、动静脉畸形破裂、椎体血管瘤、高血压以及妊娠。
2
Objective: To study the clinical and imaging feature of cerebral arteriovenousmalformations .
目的：研究脑动静脉畸形的临床特点和影像学特徵。
3
Objective To evaluate the embolization of arteriovenousmalformations of the maxillary region with PVA.