Modelling the ability of rheoencephalography to measure cerebral blood flow

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Abstract

Despite the long history of rheoencephalography (REG), some important aspects of the method are still debatable. Bioimpedance measurements offer great potential benefit for study of the human brain, but the traditional four or six electrode method suffers from potential misinterpretations and lack of accuracy. The objective of this paper is to study the possible mechanism of REG formation by means of numerical modelling using a realistic finite element model of the human head. It is shown that the cardiac related variations in electrical resistivity of the scalp contributes more than 60% to the REG amplitude, whereas the brain and cerebrospinal fluid are mutually compensated by each over.

Original languageEnglish
Pages (from-to)110-113
Number of pages4
JournalJournal of Electrical Bioimpedance
Volume5
Issue number1
DOIs
Publication statusPublished - 2014

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Keywords

  • Finite element model
  • Numerical modelling
  • Rheoenchephalography

ASJC Scopus subject areas

  • Biophysics
  • Biomedical Engineering

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