Fujifilm Corporation

Tadashi Nakamura

Kazuki Matsuzaki

Keisuke Yamakawa

Koichiro Suzuki

Provided is an X-ray imaging apparatus that can understand a three-dimensional position of a treatment tool in real time during a medical operation without rotating a column of an X-ray tube. A first X-ray image is acquired by irradiating a subject with X-rays from a first X-ray tube supported by a first column and detecting the X-rays transmitted through the subject by an X-ray detector. A second X-ray image is acquired by irradiating the subject with X-rays from a second X-ray tube supported by a second column at a position shifted from an optical axis of the first X-ray tube and detecting the X-rays transmitted through the subject by the X-ray detector. A position of an image of a predetermined feature part included in the first X-ray image and a position of an image of the feature part included in the second X-ray image are used to calculate a three-dimensional position of the image of the predetermined feature part.

X-ray imaging apparatus and X-ray imaging method

Provided is an X-ray imaging apparatus including two tubes, the X-ray imaging apparatus having a smaller exposure amount of a subject than a biplane X-ray imaging apparatus, maintaining an image quality of an X-ray image in a time axis direction, and improving the visibility of a device or the like. A first X-ray tube that irradiates the subject with X-rays, a second X-ray tube that irradiates the subject with X-rays from a direction different from a direction of the first X-ray tube, and one X-ray detector that detects the X-rays that are applied from the first X-ray tube and the second X-ray tube and are transmitted through the subject are provided. Pulse-like power is alternately supplied to the first X-ray tube at a first pulse width and to the second X-ray tube at a second pulse width such that a period in which the first X-ray tube applies the X-rays and a period in which the second X-ray tube applies the X-rays do not overlap with each other. A first X-ray image is generated by taking in output of the X-ray detector that has detected the X-rays applied from the first X-ray tube. A second X-ray image is generated by taking in output of the X-ray detector that has detected the X-rays applied from the second X-ray tube.

X-ray imaging apparatus and operation method of X-ray imaging apparatus

A radiography apparatus is provided in which a doctor can recognize wear-off of anesthesia without interrupting an operation of an endoscope or the like. With the radiography apparatus, images of a plurality of parts of a subject are extracted from an image captured by a camera to calculate a movement amount for each part. The calculated movement amount for each part is weighted with a weight that is determined in advance for each of the plurality of parts, and in a case in which the movement amount after the weighting exceeds a predetermined threshold value, an operator is notified that the movement amount after the weighting exceeds the predetermined threshold value.

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Chiba, Japan

Tadashi Nakamura