Abstract:
A breast measurement apparatus 1 comprises a receptacle 3 for surrounding a breast B; a plurality of optical fibers 11 for irradiating the breast B with examination light and detecting transmitted scattered light from the breast B; an inner image generation unit 53 for generating an optical CT image concerning the breast B according to a detection signal of the transmitted scattered light; an ultrasonic probe 21, arranged so as to face the inside of the receptacle 3, for scanning the breast B with an ultrasonic wave and receiving a reflected wave from the breast B; an image generation unit 24 for generating an ultrasonic image concerning the breast B according to the reflected wave; and a mechanism for injecting and discharging a liquid interface agent I into and from the inside of the receptacle 3. This makes it possible to acquire an ultrasonic image and an optical CT image under the same measurement condition.
Abstract:
A method of evaluating a therapeutic effect of a drug in a cancer patient, comprising a comparison step of comparing a first absolute hemoglobin concentration in a sternum portion of the cancer patient before administration of the drug and a second absolute hemoglobin concentration in the sternum portion of the cancer patient after administration of the drug; and an evaluation step of evaluating the therapeutic effect of the drug in the cancer patient based on the result of comparison performed through the comparison step.
Abstract:
A mammography device 1 is an apparatus for acquiring internal information of a breast B of an examinee A by radiating light to the breast B and detecting the diffused light, and includes a container 3 configured to surround the breast B and a plurality of optical fibers 11 attached to be directed inward in the container 3 and configured to perform radiation and detection of light. The container 3 has a base member 30 having an opening 30a, a plurality of annular members 40 continuously disposed to come in communication with the opening 30a, and a bottom member 50 disposed inside the annular member 40 spaced the farthest distance from the base member 30. The annular members 40 and the bottom member 50 are configured to relatively displace the adjacent annular member 40 on the side of the base member 30 or the base member 30 in a communication direction. Some of the plurality of optical fibers 11 is attached to the plurality of annular members 40.
Abstract:
The bioinstrumentation apparatus 10 includes a light irradiation unit irradiating a measurement region B with light, a light detection unit detecting diffused light from the measurement region, and a computing unit 14 generating a reconstructed image for the interior of the measurement region. The computing unit 14 calculates J coefficients w j set for every pixel of the reconstructed image and more than 0 and not more than 1 (where J is the number of pixels of the reconstructed image) and carries out successive approximation computation by the following iterative formula x j k + 1 = x j k + w j d j k (where k is an integer from 1 to N, N is the number of times of iterative computation, x j (k) is a pixel value of the jth pixel on the kth iterative computation, and d j (k) is an update amount of the jth pixel on the kth iterative computation) to generate the reconstructed image. Thereby, there are provided a bioinstrumentation apparatus and an image generating method capable of suppressing a difference in spatial resolution and noise characteristics depending on a position inside the measurement region to generate an image which is uniform to a greater extent.
Abstract:
A probe unit is a probe unit used to measure hemoglobin dynamics inside a subject, and the probe unit includes a main body having flexibility, a first probe attached to the main body and having a first face from which a first light emitting portion for irradiating the subject with light is exposed, a second probe attached to the main body to face the first probe and having a second face from which a first light incidence portion for detecting light propagated inside the subject is exposed, a first light shielding member having light shielding properties, containing an elastic material, and attached to the first face to surround an emission axis of the first light emitting portion, and a second light shielding member having light shielding properties, containing an elastic material, and attached to the second face to surround an incidence axis of the first light incidence portion.
Abstract:
A biological measurement device includes a probe including a contact surface that includes a plurality of light input portions that input light to a measurement target part and a plurality of light receiving portions that receive measurement light output from the measurement target part, the contact surface being pressed against the measurement target part, and a calculation unit that calculates internal information on the basis of a result of detecting the measurement light obtained for each combination of the light input portion and the light receiving portion, wherein the plurality of light input portions and the plurality of light receiving portions constitute lattices having an interval d in a first direction and a second direction orthogonal to each other on the contact surface, at least some of the plurality of light receiving portions are located at a position separated by a distance A×d (A is an integer equal to or greater than 2) in the first direction and the second direction from the light input portion, at least some of the plurality of light input portions are located at a position separated by the distance A×d in the first direction and the second direction from the light receiving portion, and the combination is a combination in which an interval between the light input portion and the light receiving portion is the distance A×d.
Abstract:
The bioinstrumentation apparatus 10 includes a light irradiation unit irradiating a measurement region B with light, a light detection unit detecting diffused light from the measurement region, and a computing unit 14 generating a reconstructed image for the interior of the measurement region. The computing unit 14 calculates J coefficients w j set for every pixel of the reconstructed image and more than 0 and not more than 1 (where J is the number of pixels of the reconstructed image) and carries out successive approximation computation by the following iterative formula x j k + 1 = x j k + w j �¢ d j k (where k is an integer from 1 to N, N is the number of times of iterative computation, x j (k) is a pixel value of the jth pixel on the kth iterative computation, and d j (k) is an update amount of the jth pixel on the kth iterative computation) to generate the reconstructed image. Thereby, there are provided a bioinstrumentation apparatus and an image generating method capable of suppressing a difference in spatial resolution and noise characteristics depending on a position inside the measurement region to generate an image which is uniform to a greater extent.
Abstract:
A breast measurement apparatus 1A includes a distance measurement unit 10 measuring a distance from a skin to a light absorption portion for a measurement region of a breast which is a normal region including no tumor or an object region including a tumor, a light measurement unit 15 measuring a hemoglobin amount in the measurement region by a light measurement method using measurement light of a predetermined wavelength, a correlation data storage unit 33 storing normal correlation data of the distance to the light absorption portion and a normal hemoglobin amount generated based on measurement results for normal regions, and an evaluation value calculation unit 35 calculating a property evaluation value of the tumor based on the normal hemoglobin amount, obtained from the normal correlation data and the distance to the light absorption portion in the object region, and an object hemoglobin amount in the object region. This realizes a breast measurement method and a measurement apparatus capable of improving measurement accuracy of a property of a tumor inside a breast.