皮质下小梗死所致单瘫患者放射冠中运动纤维的躯体定位组织
Somatotopic organization of motor fibers in the corona radiata in monoparetic patients with small subcortical infarct.
作者信息
Song Young-Mok
机构信息
Department of Neurology, Dankook University Hospital, Anseo-Dong, Cheonan, Chungnam, South Korea.
出版信息
Stroke. 2007 Aug;38(8):2353-5. doi: 10.1161/STROKEAHA.106.480632. Epub 2007 Jun 14.
BACKGROUND AND PURPOSE
The somatotopic organization of the corticospinal fibers is of importance because it is related to certain stroke syndromes. Although it has been suggested that motor fibers are somatotopically arranged in the corona radiata, the evidence is still insufficient in human.
METHODS
The relative anteroposterior and mediolateral location of the lesions was measured on T2-weighted MRI in 28 patients who developed isolated motor deficit limited to the arm, leg, or bulbofacial muscles after a small corona radiata infarct.
RESULTS
The location of the lesions associated with bulbofacial, arm, and leg paresis showed anterolateral-to-posteromedial distribution.
CONCLUSIONS
The results suggest that motor fibers subserving the bulbofacial, arm, and leg muscles are somatotopically arranged at the level of the corona radiata.
背景与目的
皮质脊髓纤维的躯体定位组织很重要，因为它与某些中风综合征有关。尽管有人提出运动纤维在放射冠中呈躯体定位排列，但在人体中的证据仍然不足。
方法
对28例在小的放射冠梗死发生后出现仅限于手臂、腿部或延髓面部肌肉的孤立运动功能缺损的患者，在T2加权磁共振成像（MRI）上测量病变的相对前后位置和中外侧位置。
结果
与延髓面部、手臂和腿部轻瘫相关的病变位置呈前外侧到后内侧分布。
结论
结果表明，支配延髓面部、手臂和腿部肌肉的运动纤维在放射冠水平呈躯体定位排列。
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