Mammography apparatus
AssigneeFUJIFILM Corporation
InventorTomonari Sendai
Life of this patent
Estimating the term…
Abstract
A mammography apparatus capable of obtaining a clear breast image with reduced burden on the subject. The apparatus includes a radiation irradiation section and an object table connected to an arm such that they face each other, and the breast pressed on the object table using a compression paddle is imaged by rotating the arm according to the imaging direction. In the apparatus, the size of the breast is detected, and the relative position between the radiation irradiation section and object table is changed along the side of the object table facing the chest wall of the subject according to the detected size of the breast and the direction of rotation of the arm.
Claims15
A mammography apparatus, comprising:
- a radiation irradiation section for irradiating radiation on a breast of a subject;
- an object table having therein an image recording medium that receives the radiation to record image information thereon according to a dose of radiation transmitted through the breast, and a dose detector for detecting the dose of radiation irradiated from the radiation irradiation section and transmitted through the breast;
- an arm connecting the radiation irradiation section and object table such that they face each other;
- a compression paddle, disposed between the radiation irradiation section and object table, for pressing the breast on the object table;
- an arm rotation means for rotating the arm according to an imaging direction for the breast;
- a breast size detection means for detecting a size of the breast of the subject;
- and
- a relative position changing means for changing a relative position between the radiation irradiation section and the object table along a side of the object table facing a chest wall of the subject according to the detected size of the breast and a direction of rotation of the arm when the arm is rotated by the arm rotation means.
A mammography apparatus, comprising:
- a radiation irradiation section for irradiating radiation on a breast of a subject;
- an object table having a breast placement surface;
- a breast position detection means for detecting a position of the breast on the object table along a side of the object table facing a chest wall of the subject;
- and
- a relative position changing means for changing a relative position between the radiation irradiation section and the object table along the side of the object table facing the chest wall of the subject such that the radiation irradiation section locates on a normal line to the breast placement surface passing through a region of interest of the breast based on the position of the breast detected by the breast position detection means.
A mammography apparatus, comprising:
- a radiation irradiation section for irradiating radiation on a breast of a subject;
- an object table having therein an image recording medium that receives the irradiation radiation to record image information thereon;
- a breast size detection means for detecting a size of the breast of the subject;
- and
- a relative position changing means for changing a relative position between the radiation irradiation section and the object table along a side of the object table facing a chest wall of the subject according to the detected size of the breast.
Dependencies are inferred from the claim text.