Risberg J, Smith P
Stroke. 1980 Jul-Aug;11(4):399-402. doi: 10.1161/01.str.11.4.399.
Doppler carotid velocity determinations were related to hemispheric blood flow measurements by the 133Xe inhalation method in 28 patients with psychiatric disorders without arterial pathology and in 2 normal subjects. Results from 39 double determinations showed a product-moment correlation of 0.88 (p < 0.001) between right hemispheric blood flow and right internal carotid end-diastolic velocity. The correlation for the left side was slightly lower (r = 0.83), while the common carotid end-diastolic velocity showed a considerably lower correlation of 0.71 (rt) and 0.69 (lt) respectively. The peak-systolic velocity values (internal carotids) showed a less close relationship to hemispheric flow (r = 0.71 (rt) and r = 0.61 (lt)). It is concluded that a fairly accurate (15-20% maximum error) prediction of hemispheric blood flow from Doppler internal carotid end-diastolic velocity values is possible in patients without abnormalities in these arterial systems. The high correlations found, in spite of the fact that arterial diameters were not taken into account, are further proof of the accuracy and validity of both methods.
在28例无动脉病变的精神疾病患者和2名正常受试者中，通过吸入¹³³Xe法将多普勒颈动脉速度测定结果与半球血流量测量结果进行了关联。39次双次测定的结果显示，右半球血流量与右颈内动脉舒张末期速度之间的积差相关系数为0.88（p < 0.001）。左侧的相关性略低（r = 0.83），而颈总动脉舒张末期速度的相关性则分别低得多，为0.71（右侧）和0.69（左侧）。收缩期峰值速度值（颈内动脉）与半球血流量的关系不太密切（r = 0.71（右侧）和r = 0.61（左侧））。得出的结论是，在这些动脉系统无异常的患者中，根据多普勒颈内动脉舒张末期速度值对半球血流量进行相当准确的预测（最大误差为15 - 20%）是可能的。尽管未考虑动脉直径，但所发现的高相关性进一步证明了这两种方法的准确性和有效性。
