| CPC A61B 6/502 (2013.01) [A61B 6/0414 (2013.01); G06T 7/00 (2013.01); G06T 2207/30068 (2013.01)] | 7 Claims |
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1. A mammography apparatus comprising:
an imaging table on which a breast of a subject is placed;
a radiation source that emits radiation toward the breast;
a stand that directly or indirectly supports the radiation source and the imaging table;
a compression plate that is disposed to be movable between the imaging table and the radiation source and is directly or indirectly supported by the stand, the compression plate including a bottom plate that compresses the breast and side plates provided on at least two locations of a subject side and a stand side of the bottom plate; and
a projector that is disposed on the stand side with respect to the radiation source, that projects an image toward the compression plate and the imaging table through a plurality of optical elements, and that is accommodated in a radiation source accommodation portion that accommodates the radiation source,
wherein in a case where a surface on the subject side in the side plate on the stand side is defined as an inner wall surface of the side plate, and an intersection between an imaginary plane formed by extending the inner wall surface toward the projector and an imaginary horizontal line crossing the projector in a horizontal direction is defined as an imaginary intersection, among the plurality of optical elements, an optical element closest to the compression plate on an optical path of light emitted from the projector and directed to the compression plate is disposed on the subject side with respect to the imaginary intersection.
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