Kabushiki Kaisha Toshiba

Toshiba Medical Systems Corporation

Yasunori Goto

Hiroaki Sato

Takeo Matsuzaki

Rie Ochiai

An X-ray diagnostic system is provided that is capable of fitting the vertical position of the X-ray tube to each mode of photography without being affected by the height of the ceiling. The X-rays irradiated from the X-ray tube and transmitted through the subject are detected, and photographed images are captured based on the detected X-rays; the system comprises a supporting member, an arm member, and a height adjuster; the supporting member is provided on the ceiling of a room, formed in a pillar shape, and configured in such a way that the entire length is vertically extended and shortened. The arm member has a base end section connected to the lower end portion of the supporting member and a tip section on which the X-ray tube is mounted. The height adjuster adjusts the vertical position of the X-ray tube by moving the tip section of the arm member relative to the supporting member.

X-ray diagnostic system

According to one embodiment, an end-of-life detection unit in an X-ray diagnostic apparatus is configured to detect an end of life of a detector on the basis of an output value in an X-ray image, and includes: a luminance-level-value computation unit configured to calculate an amount of X-ray irradiation of the detector on the basis of the output value in an area of interest which is set on any one of the X-ray image and the detector; an irradiation-amount accumulation unit configured to calculate an accumulated amount of irradiation in the area of interest by adding the amount of X-ray irradiation calculated by the luminance-level-value computation unit to a previous amount of X-ray irradiation in the area of interest; and an end-of-life judgment unit configured to make a judgment on the end of life of the detector on the basis of the accumulated amount of irradiation.

X-ray diagnostic apparatus

An X-ray tube and an X-ray detector are supported by an arm in such a manner that a distance between the X-ray tube and an image reception plane of the X-ray detector can be changed. A grid is arranged on the image reception plane of the X-ray detector. The arm is supported by an arm support apparatus in such a manner that an angle of the arm can be changed. Moire image data files obtained by the grid are stored in a storage device in association with the distance between the X-ray tube and the image reception plane of the X-ray detector and the angle of the arm. Image data outputted from the X-ray detector is corrected by the moire correction circuit based on the moire image data selectively read from the storage device in accordance with the distance and the angle.

Growing community of inventors

Shioya-gun, Japan

Yasunori Goto