基于桡动脉舒张期脉搏轮廓分析得出的动脉弹性参数的可重复性：动脉粥样硬化的多民族研究
Reproducibility of arterial elasticity parameters derived from radial artery diastolic pulse contour analysis: the multi-ethnic study of atherosclerosis.
作者信息
Brumback Lyndia C, Jacobs David R, Dermond Norma, Chen Haiying, Duprez Daniel A
机构信息
Department of Biostatistics, University of Washington, Seattle, WA 98195, USA.
出版信息
Blood Press Monit. 2010 Dec;15(6):312-5. doi: 10.1097/MBP.0b013e32833fe2a6.
OBJECTIVE
The aim of this report was to describe the reproducibility of arterial elasticity parameters derived from radial artery diastolic pulse contour analysis.
METHODS
Two measurements were taken on the same day by the same technician with the HDI/Pulsewave CR-2000 System on each of a subset of participants selected randomly from the Multi-Ethnic Study of Atherosclerosis. Large and small artery elasticities (C1 and C2), C1 and C2 each multiplied by systemic vascular resistance (C1xR and C2xR, which are functions of the radial artery pulse waveform only), and systolic and diastolic blood pressures (SBP and DBP) were evaluated.
RESULTS
Two measurements were taken of each of the 131 participants. The mean difference±standard deviation of the difference was -0.13±3.5 mmHg ×10 for C1, -0.03±1.5 mmHg ×100 for C2, 0.10±4.6 s ×10 for C1xR, 0.05±1.8 s ×100 for C2xR, 2.8±8.2 mmHg for SBP, and 1.5±5.0 mmHg for DBP. The between-measure correlation was 0.74 for C1, 0.84 for C2, 0.58 for C1xR, 0.74 for C2xR, 0.90 for SBP, and 0.86 for DBP.
CONCLUSION
The reproducibility of arterial elasticity measurements is less than that of SBP and DBP . Multiple measurements of arterial elasticity of a participant are recommended.
目的
本报告旨在描述通过桡动脉舒张期脉搏轮廓分析得出的动脉弹性参数的可重复性。
方法
由同一名技术人员在同一天使用HDI/脉搏波CR - 2000系统，对从动脉粥样硬化多民族研究中随机选取的一部分参与者进行两次测量。评估大动脉和小动脉弹性（C1和C2）、C1和C2分别乘以体循环血管阻力（C1xR和C2xR，它们仅是桡动脉脉搏波形的函数）以及收缩压和舒张压（SBP和DBP）。
结果
对131名参与者中的每一位都进行了两次测量。C1的平均差值±差值的标准差为 -0.13±3.5 mmHg×10，C2为 -0.03±1.5 mmHg×100，C1xR为0.10±4.6 s×10，C2xR为0.05±1.8 s×100，SBP为2.8±8.2 mmHg，DBP为1.5±5.0 mmHg。测量之间的相关性对于C1为0.74，对于C2为0.84，对于C1xR为0.58，对于C2xR为0.74，对于SBP为0.90，对于DBP为0.86。
结论
动脉弹性测量的可重复性低于SBP和DBP。建议对参与者的动脉弹性进行多次测量。
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