Kabushiki Kaisha Toshiba

Toshiba Medical Systems Corporation

Naofumi Watanabe

Shigeru Tanaka

Miwa Okumura

Yasuo Nobuta

Masahiro Kazama

Yasuhiro Seki

Yasuo Kodaira

Masatoshi Tomura

Hideaki Takanezawa

An X-ray computed tomographic apparatus includes a gantry, a reconstructing portion, and a tube current value determining portion. The gantry acquires projection data of an arbitrary range in a body axial direction by continuously moving a tabletop on which a subject is laid down and by continuously rotating an X-ray tube about the subject. The reconstructing portion reconstructs image data from the acquired projection data according to reconstruction processing selected by an operator from plural types of reconstruction processing. The tube current value determining portion determines plural tube current values respectively corresponding to discrete, plural positions within the range, on the basis of the selected type of reconstruction processing and an image quality level specified or selected by the operator.

X-ray computed tomographic apparatus

A helical-scanning type of X-ray CT apparatus includes a dolly,and a gantry body,mounted on the dolly,. The dolly,is capable of translation relatively to a patient,lying on a tabletop,. An X-ray tube,and an X-ray-detector,opposing the X-ray tube,are rotatably accommodated in the gantry body,. In operation, the helical scanning operation of the X-ray CT apparatus is carried out by combining the translation of the dolly,with the rotation of the X-ray tube

Helical scanning type X-ray CT apparatus with movable gantry

According to the present invention, there is provided an image data detecting apparatus for X-ray CT comprising a scanning apparatus including an X-ray tube for emitting X-rays while rotating about a patient, a detector for detecting X rays emitted by the X-ray tube and passing through the patient, and a memory unit for storing transmission X-ray data detected by the detector, and a transmitting/receiving unit for transmitting the transmission X-ray data stored in the memory unit together with an identification number for identifying the image data detecting apparatus. The image data detecting apparatus of the present invention can be set solely in an inspection site, thereby making it possible to save the space for inspection.

X-ray CT scanner system having a plurality of x-ray scanner apparatus

An optical data transmission apparatus which is used to transmit a signal between the rotating portion and fixed portion of an X-ray CT scanner comprises light emitting elements arranged on a side plane of the rotating portion which is perpendicular to a rotation axis and are uniformly driven according to transmission data to emit lights in a direction parallel to the rotation axis. A light receiving element is disposed on the side plane of the fixed portion which faces the light emitting elements. The interval between the light emitting elements is so set that the illumination areas formed by the light emitting elements partly overlap each other on the light receiving element. Therefore, the light receiving element always receives a light or lights from one or two of the light emitting elements during the rotation of the rotating portion and transmission data from all of the light emitting elements can be continuously transmitted to the light receiving element.

Growing community of inventors

Nasu-gun, Japan

Naofumi Watanabe