大脑中动脉狭窄程度与磁共振弥散加权成像梗死模式关系的分析  

Analysis of the severity of middle cerebral artery stenosis and the infarction pattern of diffusion-weighted magnetic resonance imaging

作　　者：黄照[1,2] 王玉洁[1] 辛岳[1] 郭婷婷[1] 

机构地区：[1]辽宁省人民医院神经内二科,沈阳110016 [2]大连医科大学神经病学系,116044

出　　处：《中国脑血管病杂志》2013年第4期197-201,共5页Chinese Journal of Cerebrovascular Diseases

摘　　要：目的分析大脑中动脉(MCA)狭窄程度与磁共振弥散加权成像(DWI)显示的脑梗死模式的关系。方法回顾性分析56例急性缺血性脑梗死患者的临床资料,均经磁共振血管成像确诊为MCA狭窄。将MCA狭窄分为轻、中、重度,依据DWI显示的梗死模式,分别观察小穿支动脉梗死(SPAI)、大穿支动脉梗死(LPAI)、皮质支供血区梗死(PI)、分水岭梗死(BZI)和大面积梗死(LTI)。结果①56例MCA狭窄患者中,SPAI 12例,LPAI 4例,PI 9例,LTI 1例,BZI 30例。②在BZI中前BZI 6例,后BZI 4例,内BZI 20例。③MCA轻、中、重度狭窄者中,以BZI最多,分别为39.1%(9/23)、41.2%(7/17),和87.5%(14/16),且在BZI模式中,又以内BZI最多,分别为26.1%(6/23)、29.4%(5/17),和56.3%(9/16)。结论在伴有MCA狭窄的患者中,脑梗死模式以BZI为主。而BZI中,又以内BZI最常见,其中MCA重度狭窄患者更加显著。Objective To analyze the severity of middle cerebral artery （MCA） stenosis and the infarction pattern of diffusion-weighted magnetic resonance imaging （DWI）. Methods The clinical data of 56 patients with acute ischemie cerebral infarction were analyzed retrospectively. They were all diagnosed as MCA stenosis by magnetic resonance angiography. MCA stenosis was divided into mild, moderate and severe stenosis. The infarction pattern based on DWI was divided into small perforating artery infarct （SPAI） , large perforating artery infarct （LPAI） , pial infarct （PI） , border-zone infarct （BZI） , and large territory infarct （LTI） according to the stenotic degree of MCA. Results （1）Of the 56 patients with MCA stenosis in this group, 12 were SPAI, 4 were LPAI, 9 were PI, 1 was LTI, and 30 were BZI. （2）In the BZI, 6 patients were anterior BZI, 4 were posterior BZI, and 20 were internal BZI. （3）Among the patients with mild, moderate and severe MCA stenosis, the most was BZI pattern, they were 39. 1% （9/23） , 41.2% （7/17） , and 87.5% （14/16）, respectively, and in the BZI pattern with mild, moderate and severe MCA stenosis, the most was internal BZI, and they were 26.1% （6/23）, 29.4% （5/17）, and 56. 3% （9/16） , respectively. Conclusion In patients with mild, moderate and severe MCA stenosis, the cerebral infarction pattern is mainly BZI. In the BZI pattern, the internal BZI is most common. The patients with severe MCA stenosis are more significant.

关 键 词：梗死 大脑中动脉狭窄 磁共振成像 

分 类 号：R743.3[医药卫生—神经病学与精神病学]