What are the classifications of cerebral infarction?

(1) Massive cerebral infarction: refers to massive cerebral infarction caused by occlusion of the trunk of common carotid artery, internal carotid artery or middle cerebral artery.

(2) Watershed infarction: refers to the infarction in the blood supply area between the distal ends of adjacent arteries. From the imaging point of view, watershed infarction can be divided into: ① Precortical type: refers to the infarction that occurs in the blood supply area between the anterior cerebral artery and the distal cortical branch of the middle cerebral artery; ② Posterior cortical type: refers to the infarction between the middle cerebral artery and the posterior cerebral artery, or between the distal cortical branches of the anterior, middle and posterior cerebral arteries; ③ Subcortical type: refers to the infarction that occurs at the distal end of cortical branches and deep branches of anterior, middle and posterior cerebral arteries, or in the blood supply area between recurrent artery and lentiform artery.

(3) Lacunar cerebral infarction: refers to cerebral infarction occurring in deep brain, cerebellum and small brain stem.

(4) Multiple cerebral infarction: refers to cerebral infarction with two or more pathological changes at the same time or successively.

(5) Multiple infarct dementia: refers to mental retardation caused by multiple cerebral infarction.

(6) Hemorrhagic cerebral infarction: refers to the recanalization of blocked arteries or the opening of collateral circulation, which makes the blood vessels in the infarcted area bleed.

(7) Asymptomatic cerebral infarction: refers to cerebral infarction occurring in non-functional areas.