Computer method for automatic determination of stroke volume using impedance cardiography signals

• Autorzy: Cybulski G.
• Języki publikacji: EN

Abstrakty

EN

Cybulski, G.: Computer method for automatic determination of strofce volume using impedance cardiography signals. Acta physiol, pol., 1988, 39 (5-6): 494-503. The described Computer method of stroke volume (SV) estimation is based on impedance cardiography (ICG) signals. This method allows to calculate SV. for 4096 successive cycles of the heart. The disturbing influence of respiration is reduced by base-line correction procedure. Stroke volume values determined automatically (AD) were compared with those obtained by conventional hand digitizing (HD) in 5 young male subjects dn the supine and sitting positions, and in 5 subjects in the standing position. The correlation coefficient between SV values determined automatically SV (AD) and hand digitized SV (HD) calculated for all collected data was 0.9583 (n=150, ,P<0.001). The error of the automatic SV .determination was 6.7%.

• Wydawca: -
• Czasopismo: Acta Physiologica Polonica
• Rocznik: 1988
• Tom: 39
• Numer: 5-6
• Opis fizyczny: p.494-503,fig.,ref.

Twórcy

autor

Cybulski G.

• Department of Applied Physiology, Polish Academy of Sciences, Warsaw, Poland

Bibliografia

• 1. Aust, P.E., Belz, G., Koch, W. (1982) Comparison of impedance cardiography and echocardiography for measurement of stroke volume. Europ. J. Clin. Pharmacol. 23 (6). 475-477.
• 2. Boer, P., Roos, J.C., Geyskes, G.G., Mees, E.J.D. (1979) Measurement of cardiac output by impedance cardiography under various conditions. Amer. J. Physiol. 237 (4). H491-H492.
• 3. Ebert, T.J., Eckiberg, D.L., Vetrovec, GM., Cowley, M.J. (1984) Impedance cardiograms reliably estimate beat-by-beat changes of left ventricular stroke volume in human. Cardiovasc. Res. 18. 354-360.
• 4. Hatcher, D.D., Srb, O.D. (1986) Comparison of two noninvasive techniques for estimating cardiac output during exercise. J. Appl. Physiol. 61 (1). 156-159.
• 5. Frey, M.A.B. (1982) Computer-assisted method for performing impedance, cardiography calculations. J. Appl. Physiol. Respirat. Environ. Exercise Physiol. 52 (1). 274-277.
• 6. Judy, W.V., Langley, F.M., McCowen, KJJ., Stinnet, D.M., Baker, LJB. Johnson, P.C. (1969) Comparative evaluation of the thoracic impedance and isotope dilution methods for measuring cardiac output Aerospace Medicine 40 (5). 532-536.
• 7. Kubicek, W.G., Karnegis, J.N., Patterson, R.P., Witsoe, D.A., Matison, R.H. (1966) Development and evaluation of an impedance cardiac output system. Aerospace Medicine 37 (12). 1208-1212.
• 8. Milsom, I., Sivertsson, R., Biber, В., Olsson, T. (1982) Measurement of stroke volume with impedance cardiography. Clinical Physiol. 2. 409-417.
• 9. Miyamoto, P., Tamura, T,, Mikami, T. (1981a) Automatic determination of cardiac output using an impedance plethysmography. Biolelemetry and Patient Monitoring 8. 189-203.
• 10. Miyamoto, Y., Takahashi, M., Tamura, T., Nakamura, T., Hiura, T., Mikami, M. (1981b) Continuous determination of cardiac output during exercise by the use of impedance plethysmography. Med. Biol. Engin. Comput. 19. 638-644.
• 11. Muzi, M.. Ebert, T.J. Tristani, F.E., Jeutter, D.C., Barney, J.A., Smith, J.J. (1985) Determination ot cardiac output using ensemible-avenaged impedance cardiograms. J. Appl. Physiol. 58 (1). 200-205.
• 12. Muzi, M., Jeutter, D.C., Smith, J.J. (1906) Computer-automated impedance-derived cardiac indexes. IEEE Trans. Biomed. Engin. 33 (1). 42-47.