在主要脑动脉供血区之间区域发生的梗塞—分水岭梗塞(WI)通常被认为与血液动力学机制有关,如心脏病所致较长时间的低血压所致双侧WI,颈动脉严重闭塞时可致一侧WI。梗塞的范围与低血压持续时间、动脉闭塞程度及侧支循环的建立有关。皮质交界区的WI最为常见,然而WI也可发生于较靠内侧之处,即发生于自浅表软脑膜丛发出的髓动脉与 Infarction-watershed infarcts (WI) occurring in the region between major cerebral artery blood supply areas are generally considered to be associated with hemodynamic mechanisms such as bilateral WI due to prolonged hypotension due to heart disease and severe carotid artery occlusion May cause side WI. The extent of infarction is related to the duration of hypotension, the degree of occlusion and the establishment of collateral circulation. WI in the cortical junction is the most common, however, WI may also occur in more medial locations, ie, arising from the myelinated artery originating from the superficial pial plexus and