Ge Medical Systems Global Technology Company, LLC

Katsumi Azu

Akihiko Nishide

Masatake Nukui

Akira Izuhara

Masashi Maida

Masahiro Moritake

Daigo Urabe

A cradle position sensing mechanism that includes a scale unit having a scale, which is used to detect the position of the cradle, formed thereon and being extended to cover a sliding range within which the cradle can be slid; and a sensor unit that moves in the directions, in which the scale unit is extended, along with the slide of the cradle so as to detect the scale of the scale unit. The cradle position sensing mechanism serves as a digital linear encoder. Based on the reading on the scale detected by the sensor, the cradle position sensing mechanism calculates the position into which the cradle is slid.

Subject moving apparatus and imaging apparatus

A collimator control method for an X-ray CT apparatus includes changing an aperture of the collimator according to a position of a helical scan on the body axis of the subject in the progress of the helical scan.

Collimator control method and X-ray CT apparatus

For the purpose of reducing a deviation in the rotational center of scan and a deviation in scan position in the direction of length of a rail, a gantry system including a pair of runway rails and a gantry in an X-ray CT system that can move along the runway rails, is characterized by comprising a linear guide rail arranged in the direction along the runway rails and linear guide blocks mounted on the gantry and slidably fitted on the linear guide rail.

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Tokyo, Japan

Katsumi Azu