Electrical Bioimpedance Cerebral Monitoring: Effects of Hypoxia
2005 (English)Licentiate thesis, comprehensive summary (Other academic)
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.
Place, publisher, year, edition, pages
Gothenburg: Chalmers Reproservice , 2005. , 84 p.
, Chalmers Technical Reports, ISSN 1403-266X ; R012/2005
Medical Laboratory and Measurements Technologies
IdentifiersURN: urn:nbn:se:kth:diva-80373OAI: oai:DiVA.org:kth-80373DiVA: diva2:496271
2015-04-17, EA4, Gothenburg, 13:00 (English)
Martinsen, Orjan, Professor
Lindecrantz, Kaj, Professor
ProjectsBrain damage, Detection and localization of cell swelling
QC 201202172012-02-172012-02-092012-02-17Bibliographically approved
List of papers