Seismocardiography for monitoring changes in left ventricular function during ischemia.

@article{Salerno1991SeismocardiographyFM,
  title={Seismocardiography for monitoring changes in left ventricular function during ischemia.},
  author={David M. Salerno and John M. Zanetti},
  journal={Chest},
  year={1991},
  volume={100 4},
  pages={
          991-3
        }
}
Seismocardiography is a new noninvasive technique for recording cardiac vibrations. Changes in the recorded waves have been correlated with acute and chronic changes in left ventricular function. In this report, we describe a patient who developed ischemia induced by coronary angiography in the cardiac catheterization laboratory. The patient's seismocardiogram showed distinct changes during the ischemic episode that actually preceded the onset of symptoms and resolved after nitroglycerin… 
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129 Citations
Highly Influential Citations
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Background Citations
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Methods Citations
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129 Citations

Simplified detection of myocardial ischemia by seismocardiography

TLDR
This simple and noninvasive diagnostic tool may be used intra- and postoperatively to identify patients at risk and enables detection and differentiation of ischemia and hypovolemia as important causes of altered myocardial function during and after surgery.

The seismocardiogram as magnetic-field-compatible alternative to the electrocardiogram for cardiac stress monitoring

TLDR
Novel application of SCG to monitor changes in peak acceleration from cardiac blood flow and wall motion may represent a solution to the long-standing and important problem of monitoring patients for signs of myocardial ischemia during MRI.

Usefulness of Seismocardiography for the Diagnosis of Ischemia in Patients with Coronary Artery Disease

TLDR
The diagnostic accuracy of SCG with electrocardiographic exercise test (ETT) for diagnosis of ischemia in patients with angiographically proved coronary artery disease (CAD) is compared.

Seismocardiographic adjustment of diastolic timed vibrations

TLDR
It is demonstrated that prediction of the aortic valve closure point in the SCG signal helps start the vibrator in time to cover most of the isovolumic relaxation period and safety of the technique can be assessed by estimation of the amount of unwanted vibrations applied during the isOVolumics contraction period.

Myocardial contractility: A seismocardiography approach

Features are extracted from seismocardiogram data to correlate with two indexes of myocardial contractility: dP/dtmax (maximum first derivative of left ventricular pressure) and stroke volume. In the…

Analysis of seismocardiogram capability for prediction of mild to moderate haemorrhage; Preliminary results

TLDR
Analysis of left ventricular ejection time (LVET), derived from a seismocardiogram (SCG), demonstrated to be more sensitive in detection of early stage hemorrhage compared to pulse pressure and heart rate.

Seismocardiography - a non-invasive method of assessing systolic and diastolic left ventricular function in ischaemic heart disease

TLDR
Seismocardiography is a helpful method of assessing left ventricular systolic and diastolic function in patients with exercise-induced ischaemia during the exercise tolerance test (ETT).

Cardiac cycle and heart rate calculation based on seismocardiogram

Seismocardiogram (SCG) is a complex; nonstationary signal used for pathological analysis of cardiac vibratory activity and reflects mechanical aspects of the heart contraction and blood ejection. It…

Wearable seismocardiography: Towards a beat-by-beat assessment of cardiac mechanics in ambulant subjects

Noninvasive myocardial contractility monitoring with seismocardiography during simulated dives.

TLDR
Hyperoxic bradycardia during simulated dives is not accompanied by impaired contractility measured with SCG, which is concordant to findings with invasive methods in current literature.
...

References

SHOWING 1-6 OF 6 REFERENCES

Noninvasive Diagnosis of Coronary Artery Disease: The CardiokymographicStress Test

TLDR
It is concluded that CKG helps identify falsepositive and false–negative ECG stress tests and improves the diagnostic accuracy of stress testing for detection of coronary artery disease.

Accuracy of cardiokymography during exercise testing: results of a multicenter study.

  • D. Weiner
  • Medicine
    Journal of the American College of Cardiology
  • 1985

A ballistocardiographic and electrocardiographic study of 328 patients with coronary artery disease; comparison with results from similar study of apparently normal persons.

Seismocardiography : a new technique for recording cardiac vibrations. Concept, method, and initial observations

Qualitative exercise seismocardiography for detection of moderate and severe multivessel coronary artery disease

Seismocardiography fur detection of coronary artery occlusion during coronary angioplasty : a preliminary report ( abstract )

  • J Am Coil Cardiol
  • 1989