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首页> 外文期刊>Applied optics >Large-scale clinical validation of noncontact and continuous extraction of blood pressure via multipoint defocused photonic imaging
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Large-scale clinical validation of noncontact and continuous extraction of blood pressure via multipoint defocused photonic imaging

机译：多点散焦光子成像的大规模临床验证和连续提取血压的连续提取

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摘要

Blood pressure (BP) is usually measured either invasively, by an intra-arterial catheter, or noninvasively, by a cuff-based sphygmomanometer. While the invasive method is continuous and more accurate, it has the risk of infection and generally is not comfortable for the patient. On the other hand, the cuff-based measurement is safer but less reliable and infrequent. Therefore, a reliable continuous noninvasive BP measurement is highly desirable. In this work, we propose a remote optical system, based on temporal analysis of secondary reflected speckle patterns, for computing a subject's pulse transit time (PTT). Afterward, a model is proposed and clinically validated for converting the PTT value into systolic and diastolic blood pressure. A full statistical analysis is performed over a comparison to a reference device (SOMNOtouch). (C) 2017 Optical Society of America.
机译：血压（BP）通常通过基于袖带的血压计通过内动脉导管或非侵入性地测量。 虽然侵入方法是连续的，更准确，但它具有感染的风险，并且通常对患者不舒服。 另一方面，基于袖口的测量更安全但不太可靠和不常见。 因此，非常希望可靠的连续非侵入性BP测量。 在这项工作中，我们提出了一种基于次级反射斑点图案的时间分析的远程光学系统，用于计算受试者的脉冲传输时间（PTT）。 之后，提出了一种模型，并临床验证，用于将PTT值转化为收缩和舒张血压。 通过与参考装置（SOMNotouch）的比较进行全统计分析。 （c）2017年美国光学学会。

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