| 摘要 |
PROBLEM TO BE SOLVED: To provide a radiographic apparatus of which the imaging visual field can easily moved.SOLUTION: A radiographic apparatus includes a C-arm 7 rotated with a vertical direction as a rotary axis perpendicular to a subject M, and an X-ray tube 3, an FPD 4, a collimator 3a, and a collimator rotation mechanism 15 supported by the C-arm 7. When the C-arm 7 is rotated, the collimator 3a is rotated relative to the subject M, and an imaging visual field R defined by the collimator 3a is inclined relative to the subject M. Then, as the imaging visual field R is inclined relative to the subject M accompanying the rotating operation of the C-arm 7, a collimator rotation control part 16 controls the collimator rotation mechanism 15 so as to rotate the collimator 3a in a direction opposite to the inclination direction of the imaging visual field R, and holds the direction of the imaging visual field R relative to the subject M. In such a manner, an operator is released from a complicated operation of manually rotating the imaging visual field R. |
