Title :
Noninvasive assessment of brain oxygenation and blood flow
Author :
Li, J.K. ; Amory, D. ; Jensen, C. ; Sigel, G., Jr.
Author_Institution :
Dept. of Biomed. Eng., Rutgers Univ., Piscataway, NJ, USA
Abstract :
A critique of methods used to assess brain oxygenation and blood flow noninvasively is presented. Techniques for pulse oximetry, including the dual wavelength technique, nuclear magnetic resonance (NMR), and positron emission tomography (PET), are discussed. Near-infrared (NIR) absorption by biological molecules and NIR assessment of brain metabolism and circulation are discussed. A pulsed light spectrophotometry system is proposed
Keywords :
biomedical NMR; biomedical measurement; brain; haemodynamics; infrared spectra of organic molecules and substances; light absorption; molecular biophysics; radioisotope scanning and imaging; biological molecules; blood flow; brain metabolism; brain oxygenation; circulation; dual wavelength technique; near infrared absorption; noninvasive assessment; nuclear magnetic resonance; positron emission tomography; pulse oximetry; pulsed light spectrophotometry system; Biochemistry; Biological materials; Biomedical measurements; Biomedical monitoring; Biomedical optical imaging; Blood flow; Electromagnetic wave absorption; Infrared surveillance; Nuclear magnetic resonance; Wavelength measurement;
Conference_Titel :
Bioengineering Conference, 1990., Proceedings of the 1990 Sixteenth Annual Northeast
Conference_Location :
State College, PA
DOI :
10.1109/NEBC.1990.66309
