Method of and device for localizing a deviant region in a turbid medium
First Claim
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1. A method of localizing a deviant region in a turbid medium that is represented by a set of volume elements, which method includesfirst irradiating the turbid medium with light comprising radiation of mainly a first wavelength:
- first measuring intensity of the light comprising radiation of mainly the first wavelength as it is transported along a plurality of light paths through the turbid medium; and
second irradiating the turbid medium with light comprising radiation of a second wavelength which is not equal to the first wavelength;
second measuring intensity of the light comprising radiation of mainly the second wavelength as it is transported along a plurality of light paths through the turbid medium;
reconstructing an image (9) of the turbid medium from the measured intensity of the light of the first and second wavelength; and
displaying the reconstructed image, further including;
calculating;
at least a first parameter in dependence on the measured intensity for a volume element which represents a property of the turbid medium, and a significance value to the volume element based on the first parameter, and displaying a point in the image that corresponds to one of the volume elements, and measuring the turbid medium after it is irradiated by means of light comprising radiation of mainly a third wavelength not equal to the first and second wavelengths as it is transported along a plurality of light paths through the turbid medium, calculating an intensity value for the volume element and a significance value is assigned to the volume element in dependence on the value of the first parameter and on a value of a second parameter.
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Abstract
The invention relates to methods of localizing a deviant region in a turbid medium. The invention also relates to devices for carrying out such methods. Said methods can possibly be used in optical mammography where a breast of a female body is examined by means of light. Said methods produce images in which any deviations, for example tumors, can be clearly recognized. This is achieved inter alia by providing markers (10) in an image (9) of the turbid medium.
9 Citations
4 Claims
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1. A method of localizing a deviant region in a turbid medium that is represented by a set of volume elements, which method includes
first irradiating the turbid medium with light comprising radiation of mainly a first wavelength: -
first measuring intensity of the light comprising radiation of mainly the first wavelength as it is transported along a plurality of light paths through the turbid medium; and
second irradiating the turbid medium with light comprising radiation of a second wavelength which is not equal to the first wavelength;
second measuring intensity of the light comprising radiation of mainly the second wavelength as it is transported along a plurality of light paths through the turbid medium;
reconstructing an image (9) of the turbid medium from the measured intensity of the light of the first and second wavelength; and
displaying the reconstructed image, further including;
calculating;
at least a first parameter in dependence on the measured intensity for a volume element which represents a property of the turbid medium, and a significance value to the volume element based on the first parameter, and displaying a point in the image that corresponds to one of the volume elements, and measuring the turbid medium after it is irradiated by means of light comprising radiation of mainly a third wavelength not equal to the first and second wavelengths as it is transported along a plurality of light paths through the turbid medium, calculating an intensity value for the volume element and a significance value is assigned to the volume element in dependence on the value of the first parameter and on a value of a second parameter. - View Dependent Claims (2, 3, 4)
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Specification