Fujifilm Corporation

Kouichi Kitano

Naoto Iwakiri

Yasunori Ohta

Naoyuki Nishino

Haruyasu Nakatsugawa

Kentaro Noma

Syo Shimizukawa

Yutaka Yoshida

Kenji Nakamura

Keiji Tsubota

Keita Watanabe

Takahiro Iwamoto

Katsumi Shimada

Shou Shimizukawa

Fumito Nariyuki

Makoto Sugizaki

Ryo Imamura

Sho Shimizukawa

Yukihisa Ikegame

An image processing apparatus includes at least one processor. The processor is configured to execute processing of acquiring a first image as a radiographic image including an image of a subject generated by radioscopy for continuously irradiating the subject with radiation to perform imaging, acquiring a second image different from the radiographic image including the image of the subject before acquiring the first image, specifying a subject region as a region where the image of the subject is formed in the first image, based on the second image, and executing image processing of enhancing contrast of the specified subject region on the first image and outputting the first image after the image processing.

Image processing apparatus, radioscopy system, image processing program, and image processing method

A control unit of an electronic cassette switches the power supply state of a plurality of blocks BL which share a signal processing of a signal processing circuit between an operating state and a non-operating state. The control unit switches the block BL from the non-operating state to the operating state before a predetermined time TW necessary for stable operation of the block BL from a timing when the reading of charge starts in the block BL.

Radiographic image detection device and method for operating the same

In a case where power P_C supplied to CA during the image reading operation is normal power PN_C, in an AED operation of detecting irradiation start of X-rays, a control unit of an electronic cassette causes at least one of non-detection CAs other than a detection CA that is the charge amplifier connected to a detection channel of a detection pixel for irradiation start detection, among the plurality of CAs connected to a MUX to be in a power saving state in which the supply power P_C is lower than the normal power PN_C during the image reading operation.

In a case in which an imaging mode continuously acquiring a plurality of energy subtraction images is performed, a radiation source control unit of a control device performs radiation source control for performing a one-shot imaging operation, in which only one of first radiation and second radiation is emitted, at least once for one two-shot imaging operation in which the first radiation and the second radiation are continuously emitted. In a case in which the imaging mode is performed, a detector control unit performs detector control to direct a radiation detector to output a first radiographic image based on the first radiation and a second radiographic image based on the second radiation.

Radiography apparatus, radiography apparatus operation method, and radiography apparatus operation program

The present disclosure provides a radiation detection system, a radiation output device, and a radiation detection device. The radiation detection system includes a radiation output device having an output control unit, and a radiation detection device having a recognition unit that recognizes whether radiation has been output from the radiation output device on the basis of a radiation detection signal. The output control unit causes radiation to be output at a first intensity from a time point of the start of outputting of radiation, and then causes the radiation to be output at a second intensity. The first intensity is an intensity higher than the second intensity and satisfying a threshold value condition set in advance in the recognition unit. The recognition unit recognizes that a detection signal of the radiation with the first intensity satisfies the threshold value condition, thereby recognizing the start of outputting of the radiation.

Radiation detection system, radiation output device, and radiation detection device

In an AED operation of detecting irradiation start of X-rays, a control unit of an electronic cassette selectively outputs the analog voltage signal from a part of the charge amplifiers including a detection CA connected to the detection channel of a detection pixel for irradiation start detection among the plurality of CAs connected to the MUX, to the ADC, causes the ADC to perform only the AD conversion process for the analog voltage signal selectively output from the multiplexer, and reduces the number of pulses NPU_A per unit time in a clock signal defining an operation timing of the ADC compared to that in the image reading operation.

The present disclosure provides a radiation detection system, a radiation output device, and a radiation detection device. The radiation detection system includes a radiation output device having a radiation generation unit and an output control unit that controls output of radiation, and a radiation detection device having a radiographic image detector that detects radiation output from the radiation output device, and a recognition unit that recognizes whether radiation has been output from the radiation output device on the basis of a radiation detection signal output from the radiographic image detector. The output control unit causes radiation with a preset waveform pattern to be output from a time point of the start of outputting of the radiation, and the recognition unit recognizes the waveform pattern, thereby recognizing the start of outputting of the radiation.

A control unit of an electronic cassette has a function of switching a power supply state to an ADC between an operating state corresponding to a first state in which first power is supplied and a non-operating state corresponding to a second state in which second power that is lower than the first power per unit time is supplied. The control unit reduces the number of ADCs in the operating state per unit time T in an AED operation for detecting the start of the emission of X-rays to be less than that in an image reading operation for outputting an X-ray image provided for diagnosis.

A radiation imaging apparatus includes: a radiation irradiating apparatus that emits radiation onto a subject; a photography unit that photographs the subject to obtain a photographed image of the subject; and a radiation detector that generates radiation images of the subject, provided with a marker that represents identifying information of the radiation detector on the side thereof that includes a radiation detecting surface. The marker of the radiation detector is detected. The identifying information of the radiation detector is obtained from a marker in the case that the marker is detected.

Radiation imaging apparatus, and method and program for controlling radiation imaging apparatus

In a portable apparatus of a medical system, in a case where an operation unit receives an operation from a physician on the basis of the display contents of a display unit, the medical apparatus controlled as a result of the operation of the operation unit by an operator is defined by an operation control unit, and a signal in response to the operation contents received by the operation unit is transmitted from a transmission unit to the defined medical apparatus.

Medical system

This radiography system has a switching processing unit that switches the device that controls a radiation source and a radiography device to a control device or a portable apparatus. In a case where penetrative imaging has started, the switching processing unit switches the device that controls the radiation source and the radiography device from the control device to the portable apparatus.

Radiography system

A radiographic imaging control device is provided with a radiation detector, amplifiers and a controller. A plurality of pixels are arrayed in the radiation detector, each pixel including a sensor portion that generates charges in accordance with irradiated radiation and a switching element that is for reading out the charges generated at the sensor portion. Each amplifier is provided in correspondence with a respective pixel of the radiation detector, is equipped with a resetter that resets charges remaining at an integration capacitor, and amplifies an electronic signal according to the charges read out by the switching element from the corresponding pixel by a pre-specified amplification factor. In accordance with pre-specified conditions, the controller controls so as to alter a bias current supplied to the amplifiers in at least some periods of resetting by the resetter.

Radiographic imaging control device, radiographic imaging system, radiographic imaging device control method, and recording medium

A radiation detection device has: a scintillator for converting radiation into fluorescence; a photoelectric conversion unit for converting the fluorescence into an electric signal; and a reset light source unit for exposing reset light to the photoelectric conversion unit. A system control unit has an optical reset disabling unit for, based on a reset disabling instruction, disabling the exposure of the reset light output from the reset light source unit.

Radiation image capturing system and detector with reset light control

An electronic cassette for radiographic imaging includes a radiation imaging detector for detecting X-rays from an object and creating an X-ray image of the object. A battery supplies the radiation imaging detector with power. A power receiver wirelessly receives power from a wireless power transmission apparatus for charging the battery. A housing is formed from an electrical conductor, for containing the radiation imaging detector and the power receiver. A path opening is formed in the housing, and disposed between the power receiver and the wireless power transmission apparatus. A cover device is formed from a material having electrical insulating property and thermal conductivity, for closing the path opening, and conducting heat of the power receiver to the housing for dissipation. Preferably, the cover device contains synthetic resin. Also, a profile line of the path opening is at least partially curved.

Electronic cassette for radiographic imaging

A determination section of an FPD checks external information against a determination table and determines whether detection of a rise of X-ray pulses is allowed based on an output voltage from a short-circuited pixel. The FPD detects X-ray images. The external information is transmitted from an imaging control device. The X-ray pulses are sequentially generated by an X-ray generating apparatus. A controller selects a pulse irradiation mode in a case where the detection of the rise of the X-ray pulse is allowed. If not, a successive irradiation mode is selected. In the pulse irradiation mode, the rise and the fall of the X-ray pulse are detected and timing of storage operation is synchronized with the detected timing of the rise. In the successive irradiation mode, the storage operation is performed at predetermined time intervals without the detection of the rise and the fall of the X-ray pulse.

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Kanagawa, Japan

Kouichi Kitano