动脉夹层是指由于某种原因引起的血管中膜发生出血,形成壁内血肿,后者引起血管内膜与中膜分离,压迫血管管腔,导致管腔狭窄。夹层最初作为主动脉疾病而受关注,后来发现颈部的颈动脉、椎动脉及颅内动脉亦有发生。自F isher1972年发现第1例脑动脉夹层以来,该疾病已逐渐引起临床医 Arterial dissection refers to the blood vessel membrane hemorrhage caused by a certain reason, the formation of intramural hematoma, which causes the separation of the vascular intima and media, oppression of the vascular lumen, leading to stenosis. Mezzanine initially as aortic disease and concern, and later found the neck carotid artery, vertebral artery and intracranial artery also occurred. Since F isher’s first cerebral artery dissection in 1972, the disease has been gradually caused by clinicians