（注意视频中有句口误：松果体平面哈）
腔隙性脑梗死的好发部位为大脑深部较细的、行程较长穿通动脉供血的丘脑和内囊，各大脑动脉的末梢软脑膜动脉深达大脑白质深部的穿通动脉供血的中央半卵圆区域，基底动脉的脑干和小脑的某些较细和较长的动脉分支供血区。长期高血压使小动脉发生变性和坏死，病变血管有血液渗入，可穿透全壁，使管腔缩小、阻塞而引起腔隙性梗塞。病灶可单发或多发，直径在2—15mm大小，呈卵圆形或圆柱状，坏死组织被清除后成为一囊性残腔，较小的腔隙性灶可因胶质细胞的增生和瘢痕的形成而变小或消失。病灶最大直径可在20—35mm，是由两个以上穿动脉闭塞所致。
Good hair part of lacunar cerebral infarction for deep brain thinner, a longer journey through arterial blood supply of the thalamus and the internal capsule, the endings of brain artery pia mater deep deep in the brain white matter through artery blood supply half egg circle in the middle of the area, some basal artery of the brain stem and cerebellum is fine and long arterial blood supply area. Long-term hypertension degeneration and necrosis in the small arteries, lesion blood vessel infiltration of blood, can penetrate the whole wall, make the lumen narrowing, obstruction caused by lacunar infarction. Lesions may be single or multiple, 2-15 mm in diameter size, ovoid or cylindrical, necrotic tissue is cleared after a cystic cavity, small lacunar stove can be due to the proliferation of glial cells and the formation of scar and shrink or disappear. Lesions of 20 to 35 mm diameter can be in, is caused by two or more wear artery occlusion.
↑腔隙性脑梗死
左：T1WI 右：T2WI
↑腔隙性脑梗死
右侧脑室体部外方见2个边界较清晰小片状低密度灶
MRI对腔隙性脑梗塞显示明显由于CT，是该病首选的检查方法，它比CT显示得早，T2加权像更为敏感；显示腔隙性灶数目比CT多；显示小脑和脑干的病灶明显优于CT；MRI可行+矢状和冠状扫描，比CT定位准确。
MRI showed obvious of lacunar cerebral infarction due to computed tomography (CT), is the preferred examination methods for the disease, it is better than CT showed early, more sensitive to the t2-weighted images; Display lacunar number than CT; According to the cerebellum and brainstem lesions is superior to CT; Feasible sagittal and coronal MRI, CT positioning accuracy.
本期试题：有关腔隙性脑梗塞错误的描述是？
A、好发于大脑深部、基底节区
B、皮层支动脉梗塞
C、大小约0.5mm～1.5cm
D、常多发
E、临床症状可为钝运动或钝感觉障碍
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