Ballistocardiogram: Mechanism and Potential for Unobtrusive Cardiovascular Health Monitoring.
Ballistocardiogram: Mechanism and Potential for Unobtrusive Cardiovascular Health Monitoring.
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DOI：
10.1038/srep31297
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发表时间：
2016-08-09
影响因子：
4.6
通讯作者：
Hahn JO
中科院分区：
文献类型：
--
作者：
Kim CS;Ober SL;McMurtry MS;Finegan BA;Inan OT;Mukkamala R;Hahn JO
一个多世纪以来，人们已经知道，每当心脏将血液射入动脉时，身体就会后退。多年来，这些细微的心源性身体运动已经被越来越方便的BCG(BCG)仪器测量到。典型的BCG测量显示了几个波，最明显的是“I”、“J”和“K”波。然而，这些波的形成机制仍然难以捉摸。我们建立了一个简单的BCG波形的数学模型。结果表明，该模型不仅可以预测BCG波的生理时程和波幅，而且可以预测BCG波群。经验证的模型揭示了BCG波产生的主要机制是升主动脉和降主动脉的血压梯度。这种新的机械洞察力可能会被利用，使BCG能够实现其对心血管健康和疾病的非显着性监测和诊断的潜力。
For more than a century, it has been known that the body recoils each time the heart ejects blood into the arteries. These subtle cardiogenic body movements have been measured with increasingly convenient ballistocardiography (BCG) instruments over the years. A typical BCG measurement shows several waves, most notably the “I”, “J”, and “K” waves. However, the mechanism for the genesis of these waves has remained elusive. We formulated a simple mathematical model of the BCG waveform. We showed that the model could predict the BCG waves as well as physiologic timings and amplitudes of the major waves. The validated model reveals that the principal mechanism for the genesis of the BCG waves is blood pressure gradients in the ascending and descending aorta. This new mechanistic insight may be exploited to allow BCG to realize its potential for unobtrusive monitoring and diagnosis of cardiovascular health and disease.