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Hybrid Optical Unobtrusive Blood Pressure Measurements

机译:混合光学不干扰血压测量

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摘要

Blood pressure (BP) is critical in diagnosing certain cardiovascular diseases such as hypertension. Some previous studies have proved that BP can be estimated by pulse transit time (PTT) calculated by a pair of photoplethysmography (PPG) signals at two body sites. Currently, contact PPG (cPPG) and imaging PPG (iPPG) are two feasible ways to obtain PPG signals. In this study, we proposed a hybrid system (called the ICPPG system) employing both methods that can be implemented on a wearable device, facilitating the measurement of BP in an inconspicuous way. The feasibility of the ICPPG system was validated on a dataset with 29 subjects. It has been proved that the ICPPG system is able to estimate PTT values. Moreover, the PTT measured by the new system shows a correlation on average with BP variations for most subjects, which could facilitate a new generation of BP measurement using wearable and mobile devices.
机译:血压(BP)对于诊断某些心血管疾病(例如高血压)至关重要。先前的一些研究证明,可以通过两个身体部位的一对光电容积描记术(PPG)信号计算出的脉冲传播时间(PTT)来估计BP。当前,接触PPG(cPPG)和成像PPG(iPPG)是获得PPG信号的两种可行方法。在这项研究中,我们提出了一种混合系统(称为ICPPG系统),该系统使用两种方法都可以在可穿戴设备上实现,从而以不显眼的方式促进了BP的测量。 ICPPG系统的可行性在29个受试者的数据集上得到了验证。已经证明,ICPPG系统能够估计PTT值。此外,新系统测量的PTT对大多数对象显示平均与BP变化之间的相关性,这可能有助于使用可穿戴和移动设备进行新一代BP测量。

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