Glasser S P, Ramsey M R
Circulation. 1981 Feb;63(2):348-53. doi: 10.1161/01.cir.63.2.348.
Automation of blood pressure (BP) measurements during exercise has proved difficult because motion artifact is a major limitation in ultrasound techniques and noise artifact limits the application of sound transduction via microphone pickups. We assessed the value of a new automated system of indirect BP determination by comparing it with manually determined BP in 50 consecutive patients referred for treadmill testing. Automated BP determinations were blinded to the physician or technician who was simultaneously manually auscultating BP. The automated system uses acoustic transduction, but with ECG assist and microprocessing of nonsynchronous noise to overcome the limitations of other systems. The data were statistically analyzed and the correlation coefficient, mean difference and standard deviation of the difference for systolic and diastolic BP for differing levels of heart rate and treadmill stage were determined. The correlation between automated and manually determined BP was 0.964 for systolic BP and 0.848 for diastolic BP. Despite some limitations, this automated system offers significant advantages for exercise BP determination.
运动期间血压（BP）测量的自动化已被证明具有难度，因为运动伪影是超声技术的主要限制因素，而噪声伪影限制了通过麦克风拾音器进行声音传导的应用。我们通过将一种新的间接血压测定自动化系统与50例连续接受跑步机测试的患者的手动测定血压进行比较，评估了该系统的价值。自动血压测定对同时进行手动听诊血压的医生或技术人员保密。该自动化系统使用声学传导，但借助心电图辅助和对非同步噪声的微处理来克服其他系统的局限性。对数据进行了统计分析，并确定了不同心率水平和跑步机阶段的收缩压和舒张压的相关系数、平均差异和差异标准差。自动测定血压与手动测定血压之间的收缩压相关性为0.964，舒张压相关性为0.848。尽管存在一些局限性，但该自动化系统在运动血压测定方面具有显著优势。
