制备大鼠大脑中动脉闭塞(MCAO)模型的方式有很多，由线栓法制备的大鼠局灶性脑缺血模型目前被公认是较为理想的局灶性脑缺血模型，可用于脑血管疾病的基础与临床研究。但该方法仍存在技术要求高、模型差异性大、动物死亡率高等缺陷。目前不少国内外学者通过改变线栓保留时间、线栓入路、线栓类型及线栓插入深度等制造了多种局灶性脑缺血模型。本文分别对不同的线栓法模型之间以及线栓法和其他造模方式之间进行比较，发现不同的脑缺血模型脑梗死病理生理变化不同，对于大鼠的影响也不同。

There are many ways to prepare middle cerebral artery occlusion (MCAO) rat model. The focal cerebral ischemia model established by the suture-occluded method is widely accepted as an ideal focal cerebral ischemia model, which can be used in the basic and clinical study of cerebral vascular diseases. However, it still has the defects of high technical requirement, large model difference and high animal mortality. A variety of focal cerebral ischemia models were established by changing the retention time of the thread, the road the thread plugging into, the type of thread bolt and the depth of the thread plugging. This article compared different suture-occluded method, as well as the suture-occluded method to other modeling methods, different cerebral ischemia models may be different in the pathophysiology of cerebral infarction, and the effects may also be different.