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首页> 外文会议>Conference on Advanced Biomedical and Clinical Diagnostic Systems II; 20040125-20040126; San Jose,CA; US >Non-invasive monitoring of systolic blood pressure on the arm utilizing photoplethysmography (PPG) - clinical report
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Non-invasive monitoring of systolic blood pressure on the arm utilizing photoplethysmography (PPG) - clinical report

机译：利用光体积描记法（PPG）无创监测手臂的收缩压-临床报告

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A soft (silicone) probe, containing six light emitting diodes (880 nm) and three photo detectors, utilizes photoplethysmography (PPG) to monitor pulsations from the brachialis artery under an occluding cuff during deflation. When the arterial pulse returns, measured by PPG, the corresponding pressure in the cuff is determined. This pressure is assumed to equal the systolic pressure. An assessment trial was performed on 21 patients (9 women and 12 men, aged 27-69) at the Neuro-Intensive care unit. Since the patients were already provided with arterial needles, invasive blood pressure could be used as the reference. By choosing a threshold, for detecting pulses, as a fraction (4%) of the maximum amplitude, the systolic blood pressure was underestimated (-0.57 mmHg, SD 12.1). The range of systolic pressure for the patients was 95.5 - 199.0 mmHg, n=14. The method is promising, but improvements still have to be made in order to improve the technique.
机译：包含六个发光二极管（880 nm）和三个光电探测器的软（硅酮）探头利用光体积描记法（PPG）来监测放气过程中闭塞袖带下肱动脉的搏动。当通过PPG测量的动脉搏动返回时，确定袖带中的相应压力。假定该压力等于收缩压。在神经重症监护病房对21名患者（9名女性和12名男性，年龄在27-69岁）进行了评估试验。由于已经为患者提供了动脉针，因此可以将有创血压用作参考。通过选择阈值（最大振幅的一部分（4％））来检测脉搏，收缩压被低估了（-0.57 mmHg，SD 12.1）。患者的收缩压范围为95.5-199.0 mmHg，n = 14。该方法是有前途的，但是仍然需要进行改进以改进该技术。

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