Shimadzu Corporation

Mayuka Yoshizawa

Keishi Kitamura

Masami Maekawa

Junichi Ohi

Ichiro Oda

Koji Shimizu

The mammographic apparatus of this invention maintains peripheral portions of the breast area Ma of the sternal plate of a patient M in contact with a sternal plate contact boxduring radiography for RI distribution images of the breast area Ma of the patient M. Since the body motion accompanying respiration of the patient M shifts from the breast side to the back side, the motion of the breast area Ma of the patient M accompanying respiration of the patient M is suppressed easily. In addition, since radiography for RI distribution images is carried out with the patient M in a seated position seated on a seating unit, the apparatus is compact and can installed in a limited area, compared with an apparatus that carries out radiography for RI distribution images with a patient in a sleeping position lying on her back or on a side on a top board.

Mammographic apparatus

A detector unit for mammography of this invention includes a gamma-ray detector having a configuration with a cutout formed in part of a closed curve, a hollow portion thereof providing a field of view. The gamma-ray detector can easily be placed in a position where a breast and breast peripheries of a patient enter the field of view at the same time, by fitting sites of the patient not to be examined, such as a top of an arm and a shoulder, in the cutout. This allows breast tissues present in the breast and breast peripheries to be diagnosed at the same time.

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Kyoto, Japan

Mayuka Yoshizawa