Skip to main content

Natural frequency/damping coefficient relationship of the catheter-manometer system required for high-fidelity measurement of the pulmonary arterial pressure

Journal of Anesthesia volume 7, pages 419–426 (1993)Cite this article

Abstract

Using a digital simulation method, we analyzed the relationship between natural frequency (f n ) and damping coefficient (ζ) of the catheter-manometer system required for high-fidelity measurement of the pulmonary arterial pressure. The pulmonary artery pressure waveform was obtained with a catheter-tip transducer and it was fed into a dynamic simulator programmed on a computer. The original waveform and the output of the simulator were compared and judged visually for the fidelity. From this analysis, the combination off n and ζ was obtained and was plotted on af n -ζ diagram. It showed as an area, which was convex on the left side and open on the right side. The left-convex endpoint was located at a damping coefficient of about 0.1. At a lower heart rate, this area was extended to the lower frequency side, while, at a higher heart rate, this area was limited to the higher frequency side. Thef n -ζ diagram was also constructed theoretically by calculating the relations between natural frequencies and damping coefficients of a second order system with the amplitude and phase error tolerance set at +/-5% respectively.

This is a preview of subscription content, access via your institution.

Access options

Buy single article

Instant access to the full article PDF.

43,34 €

Price includes VAT (Finland)
Tax calculation will be finalised during checkout.

References

  1. Shinozaki T, Deane RS, Mazuzan JE: The dynamic response of liquid-filled catheter systems for direct measurements of blood pressure. Anesthesiology 53:498–504, 1980

    CAS  Article  PubMed  Google Scholar 

  2. Rutten AJ, Nancarrow C, Ilsley AH, et al: An assessment of six different pulmonay artery catheters. Crit Care Med 15:250–255, 1987

    CAS  Article  PubMed  Google Scholar 

  3. Hipkins SF, Ruten AJ, Runciman WB, et al: Experimental analysis of catheter-manometer systemsin vitro andin vivo. Anesthesiology 71:893–906, 1989

    CAS  Article  PubMed  Google Scholar 

  4. Fry DL: Physiologic recording by modern instruments with particular reference to pressure recording. Physiol Rev 40:753–788, 1960

    CAS  PubMed  Google Scholar 

  5. Milhorn HT: Transient analysis of physical systems, the application of control theory to physiological systems. Philadelphia, WB Sasunders, 1966, pp, 78–93

    Google Scholar 

  6. Kleinman B: Understanding natural frequency and damping and how they relate to the measurement of blood pressure. J Clin Monit 5:137–147, 1989

    CAS  Article  PubMed  Google Scholar 

  7. Milnor WR: Methods of measurement, hemodynamics. Baltimore, Williams & Wilkins, 1982, pp 272–301

    Google Scholar 

  8. Gersh BJ: Measurement of intravascular pressures, the circulation in anaesthesia: Applied physiology and pharmacology. Edited by Prys-Roberts C. Oxfor, Blackwell Scientific Publications, 1980, pp 511–518

    Google Scholar 

  9. Jaeger JC, Starfield AM: Differential equations and the numerical solution of differential equations, an introduction to applied mathematics. London, Oxford University Press, 1974, pp 407–430

    Google Scholar 

  10. Verner JH: Explicit Runge-Kutta methods with estimates of the local truncation error. SIAM J Numer Anal 15:772–790, 1978

    Article  Google Scholar 

  11. Thomas B: The Runge-Kutta methods, approximating solutions to ordinary differential equations. BYTE: 191–210, April, 1986

  12. Patel DJ, Mason DT, Ross J, et al: Harmonic analysis of pressure pulses obtained from the heart and great vessels of man. Am Heart J 69:785–794, 1965

    CAS  Article  PubMed  Google Scholar 

  13. Milnor WR: Pulsatile blood flow. N Engl J Med 287: 27–34, 1972

    CAS  Article  PubMed  Google Scholar 

  14. Gardner RM: Direct blood pressure measurement-dynamic response requirements. Anesthesiology 54:227–236, 1981

    CAS  Article  PubMed  Google Scholar 

Download references

Author information

Author notes

  1. Yoshio Kinefuchi

    Present address: Department of Anesthesiology, Tokai University, School of Medicine, Bohseidai, 259-11, Isehara, Kanagawa, Japan

Affiliations

  1. Department of Anesthesiology, School of Medicine, Tokni University, Isehara, Japan

    Yoshio Kinefuchi, Toshiyasu Suzuki, Mamoru Takiguchi, Yonosuke Yamasaki & Michio Yamamoto

  2. Depertinent of Anesthesia, Faculty of Medicine, University of Tokyo, Tokyo, Japan

    Kunio Suwa

Authors
  1. Yoshio Kinefuchi
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Toshiyasu Suzuki
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Mamoru Takiguchi
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Yonosuke Yamasaki
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Michio Yamamoto
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. Kunio Suwa
    View author publications

    You can also search for this author in PubMed Google Scholar

About this article

Cite this article

Kinefuchi, Y., Suzuki, T., Takiguchi, M. et al. Natural frequency/damping coefficient relationship of the catheter-manometer system required for high-fidelity measurement of the pulmonary arterial pressure. J Anesth 7, 419–426 (1993). https://doi.org/10.1007/s0054030070419

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s0054030070419

Key words

  • frequency characteristics
  • cathetermanometer system, natural frequency
  • damping coefficient
  • dynamic simulation