A Passive and Portable System for Monitoring Heart Rate and Detecting Sleep Apnea and Arousals: Preliminary Validation

1st Transdisciplinary Conference on Distributed Diagnosis and Home Healthcare, 2006. D2H2. Pub Date : 2006-04-02 DOI:10.1109/DDHH.2006.1624795

D. Mack, M. Alwan, B. Turner, P. Suratt, R. Felder

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引用次数: 60

Abstract

The National Institutes of Health (NIH) Sleep Disorders Research Plan expresses a need for methods that can non-invasively monitor sleep characteristics. Forty subjects were tested using a novel, passive ballistocardiography-based system during an overnight study. We examined our system's ability to measure heart rate as compared to EKG while we also investigated our system's apnea and arousal detection capabilities as compared to conventional polysomnography. We found a strong correlation (r=0.972, p<0.0001) in average heart rate computed over 480 thirty-second epochs when our method was compared to EKG. Additionally, we achieved a sensitivity of 89.2% and specificity of 94.6% in the automated detection of apneas. Similarly we attained a sensitivity of 77.3% and a specificity of 96.2% in the detection of arousals. These preliminary results demonstrate the effectiveness of our portable ballistocardiography-based system as compared to polysomnography and show promise that high quality sleep assessment can be performed in a home environment

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一种用于监测心率和检测睡眠呼吸暂停和觉醒的被动便携式系统:初步验证

美国国立卫生研究院(NIH)睡眠障碍研究计划表达了对非侵入性监测睡眠特征的方法的需求。在一项夜间研究中，40名受试者使用一种新颖的、被动的基于弹道心动图的系统进行了测试。与心电图相比，我们检测了系统测量心率的能力，同时与传统的多导睡眠仪相比，我们还检测了系统的呼吸暂停和觉醒检测能力。当我们的方法与心电图相比较时，我们发现在480个32秒周期内计算的平均心率有很强的相关性(r=0.972, p<0.0001)。此外，我们在自动检测呼吸暂停方面的灵敏度为89.2%，特异性为94.6%。同样，我们在检测唤醒时获得了77.3%的灵敏度和96.2%的特异性。这些初步结果表明，与多导睡眠描记仪相比，我们的便携式ballocardiography系统是有效的，并表明可以在家庭环境中进行高质量的睡眠评估

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1st Transdisciplinary Conference on Distributed Diagnosis and Home Healthcare, 2006. D2H2.

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