摘要:
Before a radiation image is captured, a rate of change of an output signal from an integrator, during a given period of time after the integrator has been reset and until a radiation start signal is supplied, is calculated. An offset voltage signal at a desired time is calculated using the rate of change, and is supplied to a voltage correcting circuit. An output signal from the integrator after a radiation X has started being applied to a subject is corrected based on the calculated offset voltage signal. The corrected output signal from the integrator is supplied to an X-ray tube controller for controlling application of the radiation X to the subject.
摘要:
Before a radiation image is captured, a rate of change of an output signal from an integrator, during a given period of time after the integrator has been reset and until a radiation start signal is supplied, is calculated. An offset voltage signal at a desired time is calculated using the rate of change, and is supplied to a voltage correcting circuit. An output signal from the integrator after a radiation X has started being applied to a subject is corrected based on the calculated offset voltage signal. The corrected output signal from the integrator is supplied to an X-ray tube controller for controlling application of the radiation X to the subject.
摘要:
A radiation image detecting system includes an image detecting information storing section storing thereon an image detecting condition under which a radiation image judged by a reader of the radiation image to be inappropriate is detected in association with a site whose radiation image is detected under the image detecting condition judged inappropriate, an image detecting information designating section designating, before a radiation image of an examined subject is detected, an image detecting condition under which the radiation image of the examined subject is detected and a site of the examined subject which is image-detected, and a warning section issuing an warning to a user when the image detecting condition designated by the image detecting information designating section falls within a predetermined range including an image detecting condition stored on the image detecting information storing section in association with the site designated by the image detecting information designating section.
摘要:
A coloration state of a test region is read out as image density values by a readout device. A calculation is made to find a similarity degree between template information for the test region, which template information represents a state of coloration of the test region, and which has been stored previously in a pattern storing device, and the coloration state of the test region, which coloration state has been read out by the readout device. An analysis of an analyte is performed by a judgment device in accordance with the similarity degree, which has been calculated.
摘要:
A radiation image photographing apparatus is formed with a photographing unit that includes a radiation emission means for emitting radiation, a radiation image detection means for recording a radiation image, a region of interest indication means for indicating a mark on a site of a subject corresponding to the region of interest specified in the radiation image, and the like; a computer having an input means, such as a mouse; and a monitor, in which a radiation image obtained by photographing is displayed on the monitor to have the user to specify a region of interest through the input means, and when coordinate information of the region of interest in the image is received from the computer, photographing unit, based on this, controls the region of interest indication means to automatically indicate a mark on a site of the subject corresponding to the region of interest.
摘要:
A tomographic image generation apparatus for generating tomographic images appropriate for diagnosis from radiation images obtained by tomosynthesis imaging. Tomographic images of a subject are generated with a first slice interval by reconstructing a plurality of radiation images obtained by the tomosynthesis imaging. A region of interest is detected from the tomographic images generated with the first slice interval. Tomographic images are generated with a second slice interval, which is smaller than the first slice interval, adjacent to the slice position of a tomographic image from which a region of interest is detected.
摘要:
The time for obtaining ultrasonic images can be reduced by using a two-dimensional transducer array and good radiation images can be obtained even when radiation imaging is performed with the fixed array. The medical imaging apparatus includes a radiation generating unit for generation radiation, a radiation detecting unit for detecting radiation, an ultrasonic transducer array provided between the radiation generating unit and the radiation detecting unit and including two-dimensionally arranged ultrasonic transducers, a radiation image data generating unit for generating radiation image data based on a detection result of the radiation detecting unit, and an image processing unit for performing image processing on the radiation image data generated based on a detection result of radiation transmitted through an object to be inspected and the ultrasonic transducer array, thereby removing an image of the ultrasonic transducer array from a radiation image represented by the radiation image data.
摘要:
An imaging section includes a radiation source that emits radiation, a detecting panel for detecting the radiation, and a rotating section for integrally rotating the radiation source and the detecting panel about a rotating axis. The radiation source and the detecting panel face each other with the rotating axis that passes though a predetermined position interposed therebetween. The imaging section sequentially images a subject placed at the predetermined position while rotating the radiation source and the detecting panel about the rotating axis, and image signals are read out for each imaging operation. A control section refers to a necessary readout region set by a setting section and controls a readout switching means such that image signals recorded in detection pixels within the necessary readout region are read out by a normal readout section, and image signals recorded in other detection pixels are read out by a high speed readout section.
摘要:
A mammography apparatus capable of obtaining a clear breast image with reduced burden on the subject. The apparatus includes a radiation irradiation section and an object table connected to an arm such that they face each other, and the breast pressed on the object table using a compression paddle is imaged by rotating the arm according to the imaging direction. In the apparatus, the size of the breast is detected, and the relative position between the radiation irradiation section and object table is changed along the side of the object table facing the chest wall of the subject according to the detected size of the breast and the direction of rotation of the arm.
摘要:
A fluorescence detecting system includes a stimulating light projector which projects onto an object part which has been dosed with a fluorescence agent first stimulating light in the exciting wavelength range of the fluorescence agent and second stimulating light which differs from the first stimulating light in the wavelength band and is in the exciting wavelength range of the auto-fluorescence material contained in the object part, and a fluorescence information obtainer which obtains the fluorescence from the fluorescence agent information based on the fluorescence from the fluorescence agent emitted from the object part in response to projection of the first stimulating light and the auto-fluorescence information based on the auto-fluorescence emitted from the object part in response to projection of the second stimulating light. The fluorescence agent is a fluorescence agent which does not emit fluorescence in response to projection of the second stimulating light.