Quantitative methods for obtaining tissue characteristics from optical coherence tomography images

a tomography image and optical coherence technology, applied in the field of tissue characterization using optical coherence tomography, can solve the problems that small changes in optical properties that influence the oct signal cannot be readily discerned, and may occur errors in analysis, so as to improve tissue type classification
US20090306520A1Inactive Publication Date: 2009-12-10LIGHTLAB IMAGING
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
LIGHTLAB IMAGING
Publication Date
2009-12-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

A method and apparatus for determining properties of a tissue or tissues imaged by optical coherence tomography (OCT). In one embodiment the backscatter and attenuation of the OCT optical beam is measured and based on these measurements and indicium such as color is assigned for each portion of the image corresponding to the specific value of the backscatter and attenuation for that portion. The image is then displayed with the indicia and a user can then determine the tissue characteristics. In an alternative embodiment the tissue characteristics is classified automatically by a program given the combination of backscatter and attenuation values.
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Description

RELATED APPLICATIONS

[0001] This application claims priority to U.S. Provisional Application 61 / 058,077 filed on Jun. 2, 2008, the disclosure of which is herein incorporated by reference in its entirety.FIELD OF INVENTION

[0002] This invention provides methods for tissue characterization using optical coherence tomography. Specifically, in part, such characterization can be performed by measuring a tissue's optical and image properties.BACKGROUND

[0003] Optical coherence tomography (OCT) is an interferometric imaging technique with widespread applications in ophthalmology, cardiology, gastroenterology and other fields of medicine. The ability to view subsurface structures with high resolution (2-15 μm) through small-diameter fiber-optic probes makes OCT especially useful for minimally invasive imaging of internal tissues and organs. OCT systems can generate images up to 100 frames per second, making it possible to image coronary arteries in the beating heart artery within a few seconds. O...

Claims

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