Light measurement system for living body
First Claim
1. A measurement method utilized in a light measurement device for a living body to irradiate light onto a subject, receive the light propagated from within the subject, and measure the fluctuation in the metabolic substance concentration within the subject, the method comprising:
- a first step for installing multiple first and a second sensor arrays including two or more light sources and two or more light detectors on the subject;
a second step for calculating the maximum position of the fluctuation in the metabolic substance concentration measured by the first and second sensor arrays;
a third step for calculating whether the maximum position is nearer the sampling point of the first sensor array, or the sampling point of the second sensor array; and
a fourth step for measuring the change in the metabolic substance concentration by utilizing the first or the second sensor arrays including a sampling point calculated to be in proximity to the maximum position of the third step.
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Accused Products
Abstract
Disclosed is a method for measuring light in a living body and capable of discriminating the size in activation brain areas. Two diamond-shaped probes alternately installed spatially for a light source or a light detector, and a second light source or light detector are installed between a first light source or light detector and an image is reconstructed utilizing all the sampling points, and whether or not the largest position on the reconstructed image is in proximity to the first or the second sampling point is determined, and an image is reconstructed from those results using only the position information from the first or the second sampling point. The difference in the sizes of the activation brain area can be displayed as an image, and an increased amount of information can be acquired from results measuring the metabolic substance concentration within a living body.
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Citations
15 Claims
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1. A measurement method utilized in a light measurement device for a living body to irradiate light onto a subject, receive the light propagated from within the subject, and measure the fluctuation in the metabolic substance concentration within the subject, the method comprising:
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a first step for installing multiple first and a second sensor arrays including two or more light sources and two or more light detectors on the subject;
a second step for calculating the maximum position of the fluctuation in the metabolic substance concentration measured by the first and second sensor arrays;
a third step for calculating whether the maximum position is nearer the sampling point of the first sensor array, or the sampling point of the second sensor array; and
a fourth step for measuring the change in the metabolic substance concentration by utilizing the first or the second sensor arrays including a sampling point calculated to be in proximity to the maximum position of the third step. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A light measurement device for a living body comprising:
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a light source to irradiate light on the subject;
a light detector to detect light that propagated through the subject;
a first and a second sensor arrays including multiple light sources and multiple light detectors; and
a processing means for processing the change in the metabolic substance concentration within the subject from the light detected by the light detector, wherein the processing means calculates the maximum position of the change in metabolic substance concentration measured by the first and the second sensor arrays, and calculates whether the maximum position is nearer the sampling point of the first sensor array, or the sampling point of the second sensor array, and calculates the change in the metabolic substance concentration by utilizing the first or the second sensor arrays including a sampling point calculated to be in proximity to the maximum position. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification