Analysis of the Power Spectrum of the Pulse Pressure Wave During Induced Intracranial Hypertension in Humans

  • S. E. Børgesen
  • L. Christensen
Conference paper

Abstract

During the lumbo-ventricular perfusion test for measurement of resistance to CSF outflow (Rout) the intracranial pressure level (ICP) is increased stepwise to several steady state pressure levels. When the pressure is increased (by elevating the outflow tube) the pulse pressure amplitude (PA), risetme (RT) and the power spectrum from the Fourier transformation and relating these parameters to mean ICP (MICP) and pressure volume index (PVI) gives a possibility for interpretation of their relation to the intracranial elastance.

Keywords

Neurol 

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References

  1. Børgesen SE, Gjerris F, Sørensen SC (1978) The resistance to cerebrospinal fluid absorption in humans. Acta Neurol Scand 57: 88–96PubMedCrossRefGoogle Scholar
  2. Christensen L, Børgesen SE (1988) Single pulse pressure wave analysis by Fourier transformation. ICP VII, Ann Arbor, MichiganGoogle Scholar
  3. Takizawa H, Gabra-Sanders T, Miller JD (1987) Changes in the cerebrospinal fluid pulse wave spectrum associated with raised intracranial pressure. Neurosurgery 20: 355–361PubMedCrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1989

Authors and Affiliations

  • S. E. Børgesen
    • 1
  • L. Christensen
    • 2
  1. 1.University Clinic of NeurosurgeryCopenhagenDenmark
  2. 2.Department of NeurosurgeryUniversity Hospital, RigshospitaletCopenhagenDenmark

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