论文部分内容阅读
目的通过超声标准化测量飞行人员椎动脉各项血流动力学参数,探讨椎动脉储备功能。方法对704例男性飞行人员行颅外段椎动脉超声标准化测量,检查内容包括内径、流速、血流量等参数,得出椎动脉各参数95%可信区间范围。将一侧椎动脉分为≤0.25cm组、0.26~0.35cm组、>0.35cm组,绘制各组对侧椎动脉内径与椎-基底动脉血流总量的散点图,验证两者是否存在线性相关,并得到各组线性相关公式,比较各组间公式斜率差异是否有统计学意义。结果 (1)704例男性飞行人员颅外段椎动脉各参数95%可信区间范围:左侧椎动脉内径(0.35±0.05)cm、平均流速(15.79±4.51)cm/s、血流量(94.01±36.83)ml/min,右侧椎动脉内径(0.33±0.05)cm、平均流速(13.91±4.31)cm/s、血流量(74.99±35.40)ml/min,椎-基底动脉血流总量(168.72±39.56)ml/min;(2)各组间对侧椎动脉内径与椎-基底动脉血流总量呈线性相关;(3)三组斜率依次减小,差异有统计学意义(P<0.05)。结论椎动脉储备功能与椎动脉内径呈正相关,内径越细,储备功能越低。
Objective To measure the hemodynamic parameters of vertebral arteries by using the standardization of ultrasound to explore the vertebral artery reserve function. Methods A total of 704 male pilots underwent extracorporeal standardization of the extracranial vertebral artery. The examination included parameters such as internal diameter, flow velocity, and blood flow. The 95% confidence intervals for the parameters of the vertebral artery were obtained. The vertebral artery on one side was divided into ≤0.25cm group, 0.26 ~ 0.35cm group and> 0.35cm group, and the scatter plot of the diameter of the contralateral vertebral artery and total vertebral-basilar artery blood flow in each group was plotted to verify the existence of both Linear correlation, and get linear correlation formula of each group, and compare the slope difference between the formulas of the groups is statistically significant. Results (1) The 95% confidence intervals of the extracranial vertebral arteries of 704 male pilots were: the left internal diameter (0.35 ± 0.05) cm, mean velocity (15.79 ± 4.51) cm / s, blood flow ± 36.83) ml / min, the diameter of the right vertebral artery was (0.33 ± 0.05) cm, the average flow velocity was (13.91 ± 4.31) cm / s and the blood flow was 74.99 ± 35.40 ml / 168.72 ± 39.56) ml / min; (2) There was a linear correlation between the diameter of the contralateral vertebral artery and the total amount of vertebrobasilar artery blood flow in all groups; (3) The slope of the three groups decreased in turn, with statistical significance (P < 0.05). Conclusion Vertebral artery reserve function is positively correlated with the diameter of vertebral artery. The smaller the diameter, the lower the reserve function.