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Inductive Plethysmography for aortic Pulse Wave Velocity

机译：感应心律描记术对主动脉脉搏波速度的影响

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摘要

Aortic stiffening is a process that is linked to cardiovascular risk factor increase. Then, aortic stiffness evaluation is considered as a good index of the evolution of pathophysiological situations, including myocardial infarction, heart failure, atherosclerosis or stroke. Today, pulse wave velocity (PWV) measurement is considered as the gold standard for evaluation of arterial stiffness. However, most of the current measurement techniques of PWV consider the time for the blood pressure pulse to propagate through a combined length of arteries and give access to arterial PWV. Therefore, none of the available techniques focuses only on the aorta. In the present context of smart clothes development, Inductive Plethsymography (IP) can be an interesting alternative for aortic PWV measure, since it has recently been shown that combination of thoracic and abdominal IP recordings can give cardiac information. We therefore investigate the potential of IP for aortic PWV measurement. In this preliminary study, a comparative analysis of PWV estimated from IP and PWV evaluated from the arm has been carried out on 11 healthy volunteers. Results show a significant linear correlation between both measures (r = 0.86, p<0.001), promising for future investigations on pathological populations.
机译：主动脉僵硬是与心血管危险因素增加相关的过程。然后，主动脉僵硬度评估被认为是包括心肌梗塞，心力衰竭，动脉粥样硬化或中风在内的病理生理情况演变的良好指标。如今，脉搏波速度（PWV）测量已被视为评估动脉僵硬度的金标准。但是，当前大多数的PWV测量技术都考虑到了血压脉冲通过一段合并的动脉传播并进入动脉PWV的时间。因此，没有可用的技术仅集中在主动脉上。在当前智能衣服开发的背景下，感应心律描记术（IP）可能是主动脉PWV测量的一种有趣替代方法，因为最近已证明胸腔和腹腔IP记录的组合可以提供心脏信息。因此，我们研究了IP在主动脉PWV测量中的潜力。在这项初步研究中，对11名健康志愿者进行了从IP估计的PWV和从手臂评估的PWV的比较分析。结果显示两种方法之间存在显着的线性相关性（r = 0.86，p <0.001），有望用于病理人群的进一步研究。

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