Kabushiki Kaisha Toshiba

Toshiba Medical Systems Corporation

Masakuni Fujise

Masahiro Ozaki

Manabu Hiraoka

Yusuke Toki

Takeo Nabatame

Masao Yamahana

Hiroyuki Onuki

Ichiro Yamagishi

Makoto Hayashibara

Tatsuya Ban

Yoshihiko Aochi

Tetsuro Hada

Masahiro Kazama

Hiroshi Ishikawa

An X-ray imaging apparatus including: an imaging unit which includes an X-ray tube that emits an X-ray to a subject and an X-ray detector that is so disposed as to face the X-ray tube; an input unit which inputs a plurality of imaging conditions including a tube current and a tube voltage of the X-ray tube, and sets an imaging protocol of the imaging unit; and an image creation unit which calculates an exposed dose when at least the tube voltage or the tube current is varied, and creates an index image that is made by overlapping an image showing the exposed dose on a two-dimensional map that is represented by the tube voltage and the tube current.

X-ray imaging apparatus and medical image processing apparatus

A computer tomography apparatus of the present invention can select one of an ON state in which X-ray radiation is performed to continuously acquire projection data and an OFF state in which acquisition of projection data is stopped, and even in the OFF state, rotation of an X-ray tube is continued, thus allowing quick switching from the OFF state to the ON state.

Computer tomography apparatus

A radiographing operation is performed by using an X-ray CT apparatus for performing a radiographing operation to a subject lying on a bed, which comprises a bed drive means, an X-ray tube irradiating an X-ray to the subject, a detecting means for detecting an irradiated X-ray, a gantry on which said X-ray tube and said X-ray detecting means are mounted, a gantry drive means for rotationally driving the gantry, an exposure information file means into which past exposure information for the subject is stored, and a main controller for controlling the X-ray tube, the bed drive means and the gantry drive means. The radiographing condition according to which the radiographing operation is performed is set in accordance with a past exposure information stored in the exposure information file and at least one of the bed, the X-ray tube and the gantry.

X-ray CT apparatus and radiographing method using same

Growing community of inventors

Otawara, Japan

Masakuni Fujise