Schott J M, Crutch S J, Fox N C, Warrington E K
Dementia Research Group, Institute of Neurology, Queen Square, London WC1N 3BG, UK.
J Neurol Neurosurg Psychiatry. 2003 Feb;74(2):255-7. doi: 10.1136/jnnp.74.2.255.
A 68 year old man suffered an acute dysphasic episode with persistent memory disturbance while taking part as a control in a longitudinal magnetic resonance imaging (MRI) study. A small new left thalamic infarct involving the mamillo-thalamic tract could be demonstrated on volumetric MRI, coinciding with the development of a selective verbal memory impairment. This suggests that lateralisation of cognitive processing of visual and verbal material exists at the thalamic as well as the cortical level. High resolution volumetric MRI may be helpful in demonstrating small subcortical infarcts that may not be seen using computed tomography or conventional MRI.
一名68岁男性在作为对照参与一项纵向磁共振成像（MRI）研究时，出现急性言语困难发作并伴有持续性记忆障碍。容积MRI显示左侧丘脑有一个新的小梗死灶，累及乳头体丘脑束，这与选择性言语记忆障碍的出现相吻合。这表明视觉和言语材料认知加工的偏侧化在丘脑以及皮质水平均存在。高分辨率容积MRI可能有助于显示使用计算机断层扫描或传统MRI可能看不到的小皮质下梗死灶。
