Barschdorff D, Erig M
Universität-GH Paderborn, Fachgebiet Elektrische Messtechnik.
Biomed Tech (Berl). 1998 Mar;43(3):34-9. doi: 10.1515/bmte.1998.43.3.34.
Using conventional methods (Riva-Rocci, oscillometric), non-invasive blood pressure measurements allow readings to be obtained only at discrete times, at intervals of at least one or two minutes. During exercise ECG recording, continuous blood pressure monitoring capable of detecting brief blood pressure changes is desirable. Our new approach is based on the known dependency of pulse wave velocity and blood pressure. The pulse transit time is derived from an ECG and a simultaneously recorded photoplethysmogram, and the blood pressure is computed using a linear model. In addition to the conventional ECG device, only a finger or ear sensor is required, so that the application of the method is quite easy. Results indicating dynamic blood pressure variations during an exercise ECG are presented.
使用传统方法（里瓦-罗西法、示波法）进行无创血压测量时，只能在离散时间点、至少间隔一到两分钟才能获取读数。在运动心电图记录过程中，能够检测能检测到短暂血压变化的连续血压监测是很有必要的。我们的新方法基于脉搏波速度与血压之间已知的相关性。脉搏传输时间由心电图和同时记录的光电容积脉搏波图得出，血压则使用线性模型计算得出。除了传统的心电图设备外，仅需一个手指或耳部传感器，因此该方法的应用相当简便。文中展示了运动心电图期间动态血压变化的结果。
