丘脑下侧动脉变异型的影像学(MRI)观察

目的 从MRI影像学角度对双侧丘脑梗死进行分析,探讨国人丘脑下侧动脉及结节动脉是否存在亚型.方法 对114例确诊为丘脑梗死患者的MRI影像学表现按照传统标准进行分型,并对单侧及双侧梗死在传统分型中所占的比例进行分析.结果 在114例丘脑梗死患者中,80例(70%)符合丘脑梗死区域传统分型,丘脑前部区域梗死、丘脑旁中央区域梗死和丘脑下侧区域梗死中,双侧与单侧梗死的比例分别为:1/4,1/4,1/3;丘脑后部区域未见双侧梗死灶.34例(30%)患者丘脑梗死分布位于传统分型区域之外.结论 支配丘脑不同区域的相关血管存在变异可能是丘脑双侧对称性梗死的重要原因.

Abstract：

Objective To analyze the bilateral thalamic infarction from the point of view of MRI imaging and to find out whether inferolateral and tuberothalamic artery had variant subtypes in the Chinese. Methods We classified the MRI imagings of 114 cases diagnosed as thalamus infarction according to the classical anatomical standards and analyzed the proportion of unilateral and bilateral infarct. Results Eighty patients ( 70% ) had the thalamus lesions in accordance with traditional classification among the 114 patients and the other 34 cases (30%) had the lesions outside the classical territories.In the groups of anteromedian, central, and posterolateral infarcts of the thalamus, the ratio of bilateral and unilateral infarct was 1/4,1/4 and 1/3, respectively. Conclusion The bilateral thalamic infarct is probably the result of a variation in the related thalamic supplying arteries.

MRI imaging of the variation of thalamic vascular syndrome

Objective To analyze the bilateral thalamic infarction from the point of view of MRI imaging and to find out whether inferolateral and tuberothalamic artery had variant subtypes in the Chinese. Methods We classified the MRI imagings of 114 cases diagnosed as thalamus infarction according to the classical anatomical standards and analyzed the proportion of unilateral and bilateral infarct. Results Eighty patients ( 70% ) had the thalamus lesions in accordance with traditional classification among the 114 patients and the other 34 cases (30%) had the lesions outside the classical territories.In the groups of anteromedian, central, and posterolateral infarcts of the thalamus, the ratio of bilateral and unilateral infarct was 1/4,1/4 and 1/3, respectively. Conclusion The bilateral thalamic infarct is probably the result of a variation in the related thalamic supplying arteries.