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适当刺激后由于代谢需要,视皮质的局部脑血流增加已被PET或MRI证实。作者应用经颅多普勒超声(TCD)观察了不同脑功能障碍视觉刺激所引起的脑血流速度的变化。 病人组28例,其中12例系动脉瘤性蛛网膜下腔出血(SAH),男4例,女8例、年龄43(19～56)岁。动脉瘤位于大脑中动脉(MCA)6例,颈内动脉2例,前交通动脉3例,基底动脉1例。12例中11例接受过动脉
Appropriate stimulation due to metabolic needs, visual cortex increased regional cerebral blood flow has been PET or MRI confirmed. The authors used transcranial Doppler ultrasound (TCD) to observe changes in cerebral blood flow velocity caused by visual stimuli of different brain dysfunctions. The patient group consisted of 28 patients, of whom 12 were aneurysmal subarachnoid hemorrhage (SAH), 4 males and 8 females, aged 43 (19- 56 years). The aneurysms were located in 6 cases of middle cerebral artery (MCA), 2 cases of internal carotid artery, 3 cases of anterior communicating artery and 1 case of basilar artery. Eleven of the 12 patients had an artery