- Document Number:
20250090117
- Appl. No:
18/815128
- Application Filed:
August 26, 2024
- نبذة مختصرة :
A mammography apparatus includes an imaging table on which a breast of a subject is placed and in which a detector that detects radiation transmitted through the breast is housed, and a processor, in which a first grid and a second grid that are scattered ray removal grids, which are able to remove scattered rays generated by the radiation scattering in the breast, and that are switchable between an imaging position and a retreat position according to imaging in each of a plurality of imaging modes are provided inside the imaging table, and the processor is configured to acquire a result of receiving imaging mode selection of a user, and execute control of disposition states of the first grid and the second grid inside the imaging table according to the acquired imaging mode selection.
- Assignees:
FUJIFILM Corporation (Tokyo, JP)
- Claim:
1. A mammography apparatus comprising: an imaging table on which a breast of a subject is placed and in which a detector that detects radiation transmitted through the breast is housed; and a processor, wherein a first grid and a second grid that are scattered ray removal grids, which are able to remove scattered rays generated by the radiation scattering in the breast, and that are switchable between an imaging position and a retreat position according to imaging in each of a plurality of imaging modes are provided inside the imaging table, and the processor is configured to acquire a result of receiving imaging mode selection of a user, and execute control of disposition states of the first grid and the second grid inside the imaging table according to the acquired imaging mode selection.
- Claim:
2. The mammography apparatus according to claim 1, wherein, in the scattered ray removal grid, a plurality of transmission parts that transmit the radiation and a plurality of absorption parts that absorb the radiation are alternately arranged, and a boundary line between the transmission part and the absorption part extends in one direction, and a direction in which the boundary line extends in the first grid and a direction in which the boundary line extends in the second grid intersect with each other.
- Claim:
3. The mammography apparatus according to claim 2, wherein, in the imaging table, in a case in which a direction connecting a chest wall side on which a chest wall of the subject is located and a side opposite to the chest wall is defined as a front-rear direction, and a direction orthogonal to the front-rear direction is defined as a left-right direction, the direction in which the boundary line extends in the first grid is parallel to the front-rear direction, and the direction in which the boundary line extends in the second grid is parallel to the left-right direction.
- Claim:
4. The mammography apparatus according to claim 3, wherein the plurality of imaging modes include a normal imaging mode in which the imaging is performed by holding a radiation source at a position facing the imaging table, and in a case in which the normal imaging mode is selected, the first grid is disposed at the imaging position, and the second grid is disposed at the retreat position.
- Claim:
5. The mammography apparatus according to claim 3, wherein the plurality of imaging modes include a first contrast imaging mode that is an imaging mode for diagnosis via contrast energy subtraction, and in a case in which the first contrast imaging mode is selected, the first grid is disposed at the imaging position, and the second grid is disposed at the retreat position.
- Claim:
6. The mammography apparatus according to claim 3, wherein the plurality of imaging modes include a second contrast imaging mode that is an imaging mode for biopsy via contrast energy subtraction, and in a case in which the second contrast imaging mode is selected, the second grid is disposed at the imaging position, and the first grid is disposed at the retreat position.
- Claim:
7. The mammography apparatus according to claim 4, wherein the plurality of imaging modes include a second contrast imaging mode that is an imaging mode for biopsy via contrast energy subtraction, and in a case in which the second contrast imaging mode is selected, the second grid is disposed at the imaging position, and the first grid is disposed at the retreat position.
- Claim:
8. The mammography apparatus according to claim 3, wherein the plurality of imaging modes include a tomosynthesis imaging mode in which tomosynthesis of the breast is performed by moving a radiation source, and in a case in which the tomosynthesis imaging mode is selected, both the first grid and the second grid are disposed at the retreat position.
- Claim:
9. The mammography apparatus according to claim 7, wherein the plurality of imaging modes include a tomosynthesis imaging mode in which tomosynthesis of the breast is performed by moving a radiation source, and in a case in which the tomosynthesis imaging mode is selected, both the first grid and the second grid are disposed at the retreat position.
- Claim:
10. The mammography apparatus according to claim 9, wherein the plurality of imaging modes include a continuous imaging mode in which at least any two of the normal imaging mode, the second contrast imaging mode, or the tomosynthesis imaging mode are continuously performed regardless of an order, and in the continuous imaging mode, the disposition states of the first grid and the second grid are changed according to each of the normal imaging mode, the second contrast imaging mode, and the tomosynthesis imaging mode.
- Claim:
11. The mammography apparatus according to claim 10, wherein, in the continuous imaging mode, the imaging in each mode in the continuous imaging mode is executable in a state in which the breast is being compressed between the imaging table and a compression plate.
- Claim:
12. The mammography apparatus according to claim 1, wherein, inside the imaging table, movement of the first grid and the second grid between the imaging position and the retreat position is linear movement.
- Claim:
13. The mammography apparatus according to claim 1, wherein the processor is configured to output the disposition states of the first grid and the second grid inside the imaging table to a notification unit.
- Current International Class:
61; 61; 61; 61
- الرقم المعرف:
edspap.20250090117
Processing Request
No Comments.