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目的 评价思维活动对脑动脉血流速度的影响。方法 经颅多普勒检测 10例正常人大脑思维活动前、后大脑中动脉、大脑前动脉和大脑后动脉的血流速度。结果 大脑思维活动后各动脉血流速度对称性增加 ,增加范围 10 3%～ 14 3% ,其中以颈内动脉系统血流速度增加明显。结论 思维活动能明显增加脑动脉血流速度。
Objective To evaluate the effect of thinking activity on cerebral arterial blood flow velocity. Methods Transcranial Doppler was used to detect the blood flow velocity of the middle cerebral artery, the anterior cerebral artery and the posterior cerebral artery in 10 healthy controls. Results After brain activity, the symmetry of arterial blood flow velocity increased, ranging from 103% to 143%. The blood flow velocity of internal carotid artery increased significantly. Conclusions Thinking activity can significantly increase cerebral blood flow velocity.