Electrical Bioimpedance Cerebral Monitoring: Effects of Hypoxia
Licentiate thesis, 2005

Electrical bioimpedance spectroscopy is one way to study the electrical properties of biological matter. Different applications of electrical bioimpedance measurements have already been used in both research and clinical scenarios i.e. impedance plethysmography, total body water contents, etc. The electrical properties of tissue reflect the electrical characteristics of the constituent elements of the tissue and depend on its structure. Thus study of the electrical properties not only makes it possible to differentiate among tissues but also to determine the tissue condition. During hypoxia/ischemia the cell activates a certain chain of mechanisms of cellular adaptation in response to the insult. A consequence of these response mechanisms is that the biochemical composition of the cellular environment is altered and the cells swell (cellular edema). These alterations affect the electrical properties of tissue and the changes can be observed through measurement of the electrical bioimpedance of the affected tissue. Based on these ideas, this research work studies the effects of hypoxia/ischemia on the brain electrical impedance. The aim is to obtain the fundamental knowledge that may lead to the development of useful clinical tools for cerebral monitoring based on electrical bioimpedance spectroscopy

13.15 Department of Signals & Systems. Chalmer University of Technology. Gothenburg
Opponent: Prof. Tekn. Dr. Ørjan G. Martinsen

Author

Fernando Seoane Martinez

Chalmers, Signals and Systems, Signalbehandling och medicinsk teknik, Biomedical Signals and Systems

1403-266X (ISSN)

Subject Categories

Medical Laboratory and Measurements Technologies

Biophysics

Other Electrical Engineering, Electronic Engineering, Information Engineering

R - Department of Signals and Systems, Chalmers University of Technology: R012/2005

13.15 Department of Signals & Systems. Chalmer University of Technology. Gothenburg

Opponent: Prof. Tekn. Dr. Ørjan G. Martinsen

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Created

10/6/2017