Patent ID: 7729469

Claim:
An X-ray imaging apparatus comprising: an X-ray imaging unit; a rotating driving unit configured to control a rotation of a table rotating on an axis of rotation; a control unit configured to control the rotating driving unit; a support configured to support a subject, which changes a position on the table between still-image taking and computed tomography (CT) imaging; a lower limb guard configured to guard a lower limb of the subject on the table; an image taking unit position detector configured to detect a position of the X-ray imaging unit; and a limiter configured to limit a range in which the X-ray imaging unit is moveable along the axis of rotation in dependence upon the position of the support relative to the axis of rotation, wherein the limiter limits a position of the X-ray imaging unit within the range in which an image of the lower limb guard is not taken when the support is at the CT imaging position, and wherein the control unit keeps rotation of the rotating unit in a suspended state when the support is at the CT imaging position and the position of the X-ray imaging unit is not within the range.