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Nonlinear Modeling of the Dynamic Effects of Arterial Pressure and Blood Gas Variations on Cerebral Blood Flow in Healthy Humans

  • Georgios D. Mitsis
  • Philip N. Ainslie
  • Marc J. Poulin
  • Peter A. Robbins
  • Vasilis Z. Marmarelis
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 551)

Abstract

Cerebrovascular resistance is controlled by multiple homeostatic mechanisms, which regulate cerebral blood flow (CBF), maintaining it relatively constant despite changes in cerebral perfusion pressure1, 2. The regulation of CBF was long viewed as a static phenomenon, whereby the “steady-state” pressure-flow relationship is described by a sigmoidal curve with a wide plateau, suggesting that CBF remains constant despite changes in pressure within certain bounds. However, with the development of Transcranial Doppler (TCD) ultrasonography for the noninvasive, high-temporal resolution measurement of CBF velocity (CBFV), it has been shown that CBFV can vary rapidly in response to variations of systemic arterial blood pressure (ABP) over various time scales3, 4.

Keywords

Cerebral Blood Flow Cerebral Blood Flow Regulation Cerebral Autoregulation Normalize Mean Square Error Volterra Kernel 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Kluwer Academic/Plenum Publishers, New York 2004

Authors and Affiliations

  • Georgios D. Mitsis
    • 1
  • Philip N. Ainslie
    • 2
  • Marc J. Poulin
    • 2
  • Peter A. Robbins
    • 3
  • Vasilis Z. Marmarelis
    • 1
  1. 1.Department of Biomedical EngineeringUniversity of Southern CaliforniaLos AngelesUSA
  2. 2.Department of Physiology & Biophysics, Faculty of MedicineUniversity of CalgaryCalgary AlbertaCanada
  3. 3.The University Laboratory of PhysiologyUniversity of OxfordOxfordUK

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