The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8000775 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 16, 2011

Filed:

Apr. 27, 2006
Applicants:

Brian William Pogue, Hanover, NH (US);

Daqing Piao, Stillwater, OK (US);

Keith D. Paulsen, Hanover, NH (US);

Shudong Jiang, Hanover, NH (US);

Hamid Dehghani, Exeter, GB;

Heng Xu, Union City, CA (US);

Roger Springett, Hanover, NH (US);

Subhadra Srinivasan, Keene, NH (US);

Inventors:

Brian William Pogue, Hanover, NH (US);

Daqing Piao, Stillwater, OK (US);

Keith D. Paulsen, Hanover, NH (US);

Shudong Jiang, Hanover, NH (US);

Hamid Dehghani, Exeter, GB;

Heng Xu, Union City, CA (US);

Roger Springett, Hanover, NH (US);

Subhadra Srinivasan, Keene, NH (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 6/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Optical tomography systems that provide light of multiple distinct wavelengths from a plurality of sources are described. The systems direct light into mammalian tissue, and light from the mammalian tissue is collected at a plurality of reception points. Collected light from each reception point is separated according to its wavelength, and received by a photodetector to produce path attenuation signals representing attenuation along paths between the source locations and the reception points. An image construction system generates a tomographic image of the mammalian tissue from the path attenuation signals. One embodiment of an optical imaging system includes an optical coherence tomography-near infrared probe. The systems and methods may utilize a spectral derivative approach that provides insensitivity to the boundary and boundary artifacts in the signal, thereby improving the quality of the reconstructed images.


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