卒中部位及局部脑血流量对智力的影响

用长谷川智力测定量表法测定了１８９例卒中患者的智力，分析了病变部位、脑萎缩及局部脑血流量（ｒＣＢＦ）对智力的影响．其中６９例患者长谷川分数低于２１．５分．当病变位于左半球时，属痴呆或可疑痴呆者达４２．９％；而病变位于右半球时，仅２３．１％属痴呆及可疑痴呆．ｒＣＢＦ与长谷川分数之间的相关分析显示：左额、右颞及左顶叶的ｒＣＢＦ与长谷川分数呈极显著正相关．提示左半球在智力活动中起主导作用．脑萎缩亦是影响智力的因素．

EFFECTS OF STROKE LESION, CEREBRAL ATROPHY AND REGIONAL CEREBRAL BLOOD FLOW (rCBF)ON MENTAL DETERIORATION FOLLOWING STROKE

The paper reported mental changes measured by Hasegawa's method in 189 patients with stroke, and analyzed the effects of lesion location and cerebral atrophy found by CT, and rCBF measured by SPECT on mental activities. In 69 of 189 patients, Hasegawa's Score was lower than 21. 5 points. It was found that up to 42. 9 % of the patients had dementia or predementia when stroke lesion was located in the left cerebral hemisphere, and only 23. 1% of the patients had dementia or predementia when the lesion was located in right hemisphere. The relationship between rCBF and Hasegawa's Score was analyzed. The authors found that, when lesion existed in the left cerebral hemisphere, there were very significantly positive relationships between Hasegawa's Score and rCBF in the left frontal lobe, the left temporal lobe and the left parietal lobe. The results indicated that the left cerebral hemisphere played a more important role in mental activities. Cerebral atrophy was also one of the factors influencing the intelligence of the patients.