Possible explanations for tonometric variation of brain death model in swine

Author

Merris, Mark ; Nain, Sheela H. ; Sarma, Lalitha ; LaCourse, John ; Selikowitz, Stuart

Author_Institution

Dept. of Biomed. Eng., New Hampshire Univ., Durham, NH, USA

fYear

1993

fDate

18-19 Mar 1993

Firstpage

97

Lastpage

98

Abstract

The use of two miniature pigs as a model system to evaluate the use of tonometry for non-invasive monitoring of cerebral blood flow for the determination of brain death is discussed. Normal values of tonometric measurement were determined and plotted during experimentation. Brain death was simulated by sequentially occluding the arterial blood supply to the brain. Tonometric readings illustrated variations in intraocular pressure. Hypothetical theories are offered to systematically explain the differences and direct future research

Keywords

bioelectric potentials; brain; eye; haemodynamics; physiological models; brain death model; cerebral blood flow; intraocular pressure; miniature pigs; noninvasive monitoring; swine; tonometric variation; Angiography; Animals; Biomedical engineering; Biomedical measurements; Blood flow; Brain modeling; Coaxial cables; Drugs; Electrocardiography; Electroencephalography;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioengineering Conference, 1993., Proceedings of the 1993 IEEE Nineteenth Annual Northeast

Conference_Location

Newark, NJ

Print_ISBN

0-7803-0925-1

Type

conf

DOI

10.1109/NEBC.1993.404402

Filename

404402