Inventors:
Kenneth Schenkman - Seattle WA, US
Lorilee Arakaki - Bainbridge Island WA, US
Wayne Ciesielski - Seattle WA, US
Jeremy Shaver - Shoreline WA, US
Assignee:
UNIVERSITY OF WASHINGTON THROUGH ITS CENTER FOR COMMERCIALIZATION - Seattle WA
International Classification:
A61B 5/1455
Abstract:
A system and method for noninvasively determining the oxygenation of a tissue, for example, a muscle, in vivo uses optical methods to optically interrogate the tissue in both a visible wavelength range and a near infrared (NIR) wavelength range. The illuminating light is sculpted in intensity to approximately match the absorbance spectrum, for example, with the visible light having an intensity an order of magnitude greater than the light. Training data is obtained from healthy patients in both the visible and NIR ranges simultaneously and used to calculate muscle oxygenation.