OCT based method for diagnosis and therapy
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United States of America Patent
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Mar 31, 2009
Grant Date -
Aug 25, 2005
app pub date -
Jan 21, 2005
filing date -
Jan 29, 2004
priority date (Note) -
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Abstract
This invention relates to a method of diagnosing or treating a biological subject, such as a person or animal, comprising the steps of subjecting at least a microsample of the subject's tissue to a physiological perturbation and measuring the response of the microsample to the perturbation using optical coherence tomography (OCT). In an exemplary embodiment, the concentration of glucose in the microsample is perturbed, as by providing the subject with a high glucose drink, and subsequently monitoring at a high sample rate in a microsample by OCT. Pathology, such as diabetes, can be diagnosed by deviation of the concentration vs. time response over several cells (micro-oscillation) from the micro-oscillation in the cells of a healthy subject. Other applications include diagnosing or treating de-hydration and diseases that cause changes in the osmolyte concentrations and thus the osmotic pressure in the cells in tissue.
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