Tamura A, Tahira Y, Nagashima H, Kirino T, Gotoh O, Hojo S, Sano K
Department of Neurosurgery, Teikyo University School of Medicine, Tokyo, Japan.
Stroke. 1991 May;22(5):615-8. doi: 10.1161/01.str.22.5.615.
We investigated shrinkage of the ipsilateral thalamus following infarction in the territory of the middle cerebral artery in 33 patients who were admitted less than or equal to 2 days after the stroke and who were followed by computed tomography for greater than 1 year with no recurrences. The thalamic area was measured on the computed tomograms, and the ratio of the ipsilateral area to the contralateral area was calculated. All values were compared with values from the initial computed tomogram taken less than or equal to 2 days after the stroke. The values of the ratio on follow-up computed tomograms decreased gradually in 15 patients. In these cases, the area of the ipsilateral thalamus was significantly reduced after 1 year (p less than 0.01) and marked atrophy was observed. These results demonstrate the significance of remote changes over a long period of time after focal cerebral infarction.
我们调查了33例在卒中后2天内入院且接受计算机断层扫描随访超过1年且无复发的大脑中动脉供血区梗死患者同侧丘脑的萎缩情况。在计算机断层扫描图像上测量丘脑面积，并计算同侧面积与对侧面积的比值。所有数值均与卒中后2天内所做的初始计算机断层扫描图像上的数值进行比较。在15例患者中，随访计算机断层扫描图像上的比值逐渐下降。在这些病例中，1年后同侧丘脑面积显著减小（p<0.01），并观察到明显萎缩。这些结果证明了局灶性脑梗死长期后远距离变化的重要性。
