PDF herunterladen
Methods Inf Med 1994; 33(01): 139-142
DOI: 10.1055/s-0038-1634959
Original Article
Schattauer GmbH

A Model for Estimation of the Pulmonary Capillary Pressure

E. W. Jensen
1   Department of Anaesthesia, Odense University Hospital, Denmark
,
L. Demant
1   Department of Anaesthesia, Odense University Hospital, Denmark
,
R. Sanchez
1   Department of Anaesthesia, Odense University Hospital, Denmark
› Institutsangaben
Weitere Informationen

Publikationsverlauf

Publikationsdatum:
08. Februar 2018 (online)

    Lizenzen und Reprints

Abstract:

To estimate the pulmonary capillary pressure, a theory was introduced by Holloway and coworkers. Based upon this, a mathematical model describing the measured data was developed. Because the physiologic data are embedded in noise and the pulmonary capillary pressure cannot be measured directly, we simulated an extensive series of data. The noise properties of the data were as analyzed to design a signal-processing tool, that cancels the noise from the measured data. The signal processing tool developed for the current application consists of pre-processing with a moving time average filter and post-processing with a neural network. After a verification procedure the tool can be applied to measured data, hence a more reliable measurement of the pulmonary capillary pressure is achieved.

Keywords

Pulmonary Capillary Pressure - Neural Network
 

  • REFERENCES

  • 1 Holloway H, Perry M, Downey J, Parker J, Taylor A. Estimation of effective pulmonary capillary pressure in intact lungs. J Appl Physiol 1983; 54: 846-51.
    CrossrefPubMedGoogle Scholar
  • 2 Yamada Y, Suzukawa M, Chinzei M. Phasic capillary pressure determined by arterial occlusion in intact dog lung lobes. Amer Physiol Soc 1989; 67: 2205-11.
    PubMedGoogle Scholar
  • 3 Hakim TS, Maarek JI, Chang HK. Estimation of pulmonary capillary pressure in intact dog lungs using the arterial occlusion technique. Am Rev Respir Dis 1989; 140: 217-24.
    CrossrefPubMedGoogle Scholar
  • 4 Demant L, Sanchez R, Fuhrman L. Computerized measurement of the pulmonary capillary pressure. Proceedings ESTA1C Second Annual Meeting. Salzburg 1991; 02: B4
    PubMedGoogle Scholar
  • 5 Dawson CA, Bronikowski TA, Linehan JH, Haworth ST, Rickaby DA. On the estimation of pulmonary capillary pressure from arterial occlusion. Am Rev Respir Dis 1989; 140: 1228-36.
    CrossrefPubMedGoogle Scholar
  • 6 Valkenburg V. Network analysis. Englewood Cliffs NJ: Prentice Hall; 1974
    Google Scholar
  • 7 Lange JJ. Catheters and Invasive Blood Pressure Measurement. Proceedings Intravascular Catheter Materials, Application and Complications. Bilthoven, The Netherlands: Viggo; 1988: 1-7.
    Google Scholar
  • 8 Freeman JA, Skapura DM. Neural Networks. New York: Addison-Wesley; 1991
    Google Scholar
  • 9 Cope DK, Grimbert F, Downey JM, Taylor AE. Pulmonary capillary pressure: a review. Crit Care Med 1992; 20: 1043-56.
    CrossrefPubMedGoogle Scholar