Rapid Assessment of Cardiac Contractility on a Home Bathroom Scale
Analyzing systolic time intervals-specifically the preejection-period (PEP)-is widely accepted as one of the few methods for the noninvasive assessment of cardiac contractility. In this paper, we investigated the ballistocardiogram (BCG) as a way to noninvasively measure myocardial contractility whe...
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| Veröffentlicht in: | IEEE journal of biomedical and health informatics 2011-11, Vol.15 (6), p.864-869 |
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| creator | Etemadi, M. Inan, O. T. Giovangrandi, L. Kovacs, G. T. A. |
| description | Analyzing systolic time intervals-specifically the preejection-period (PEP)-is widely accepted as one of the few methods for the noninvasive assessment of cardiac contractility. In this paper, we investigated the ballistocardiogram (BCG) as a way to noninvasively measure myocardial contractility when combined with the ECG. Specifically, we derived a parameter from the BCG and ECG that we hypothesized would be highly correlated to PEP. This is the time delay between the J-wave peak of the BCG and the R-wave of the ECG, which we refer to as the RJ interval. The RJ interval was correlated to PEP (r 2 = 0.86) for 2126 heart beats across ten subjects, with a y-intercept of 138 ms and slope of 1.05. This suggests that the RJ interval can be reliably used as a noninvasive assessment of cardiac contractility. |
| doi_str_mv | 10.1109/TITB.2011.2161998 |
| format | Article |
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T.</creatorcontrib><creatorcontrib>Giovangrandi, L.</creatorcontrib><creatorcontrib>Kovacs, G. T. A.</creatorcontrib><title>Rapid Assessment of Cardiac Contractility on a Home Bathroom Scale</title><title>IEEE journal of biomedical and health informatics</title><addtitle>TITB</addtitle><addtitle>IEEE Trans Inf Technol Biomed</addtitle><description>Analyzing systolic time intervals-specifically the preejection-period (PEP)-is widely accepted as one of the few methods for the noninvasive assessment of cardiac contractility. In this paper, we investigated the ballistocardiogram (BCG) as a way to noninvasively measure myocardial contractility when combined with the ECG. Specifically, we derived a parameter from the BCG and ECG that we hypothesized would be highly correlated to PEP. This is the time delay between the J-wave peak of the BCG and the R-wave of the ECG, which we refer to as the RJ interval. The RJ interval was correlated to PEP (r 2 = 0.86) for 2126 heart beats across ten subjects, with a y-intercept of 138 ms and slope of 1.05. 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| subjects | Adult Ballistocardiography (BCG) Ballistocardiography - methods Biomedical measurements Biomedical monitoring Blood flow monitoring Blood Pressure Monitoring, Ambulatory - methods Body Weights and Measures - methods Cardiography, Impedance - methods Cardiology contractility Electrocardiography Electrocardiography - methods Electrodes Female Heart home monitoring Humans Male Myocardial Contraction - physiology noninvasive cardiac monitoring Signal Processing, Computer-Assisted Time Factors |
| title | Rapid Assessment of Cardiac Contractility on a Home Bathroom Scale |
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