Title:
SYSTEM AND METHOD FOR DETERMINING BRAIN OXYGENATION
Document Type and Number:
WIPO Patent Application WO2003009750
Kind Code:
A3
Abstract:
A method for determining a blood oxygenation associated with a brain of a subject, the method includes scanning a retina of the subject to identify at least one retinal blood vessel using at least a first optical energy source. In response to the identifying, identified retinal blood vessel is selectively flashed using at least a second optical energy source. At least one reflectance is detected from the flashed retinal blood vessel, and a ratio being indicative of the oxygenation using the detected at least one reflectance is determined.
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Inventors:
BRILL MICHAEL HENRY
GREGORY CHRISTOPHER C
GREGORY CHRISTOPHER C
Application Number:
PCT/US2002/023592
Publication Date:
October 16, 2003
Filing Date:
July 25, 2002
Export Citation:
Assignee:
SARNOFF CORP (US)
International Classes:
A61B3/12; A61B5/00; (IPC1-7): A61B5/00
Foreign References:
| US5308919A | 1994-05-03 | |||
| US5935076A | 1999-08-10 | |||
| DE4433827A1 | 1996-03-28 |
Other References:
CHUTATAPE O ET AL: "Retinal blood vessel detection and tracking by matched Gaussian and Kalman filters", ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, 1998. PROCEEDINGS OF THE 20TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE HONG KONG, CHINA 29 OCT.-1 NOV. 1998, PISCATAWAY, NJ, USA,IEEE, US, 29 October 1998 (1998-10-29), pages 3144 - 3149, XP010320817, ISBN: 0-7803-5164-9
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