Patent ID: 6381299
Filing Date: 2002-04-30
Classification: A61B

Abstract:
An X-ray examination apparatus comprising:X-ray generating means for generating an X-ray which irradiates an examination object; imaging means positioned opposite to an X-ray tube of said generating means, for detecting an X-ray image of said examination object; supporting means for supporting said examination object; moving means for causing straight movement of said supporting means, wherein said moving means is comprised of reciprocation moving means for causing reciprocation straight movement of said supporting means and period controlling means for controlling a period of said reciprocation straight movement; and rotating means for rotating said movement at a preselected speed, said moving means being installed above said rotating means; wherein said reciprocating moving means causes said reciprocation straight movement of said supporting means in parallel to a rotation plane of said rotating means, said period controlling means controls to make a period of said reciprocation straight movement coincident with a rotation period of said rotation means; and wherein, while said examination object is rotated, the position of said examination object is moved along a direction parallel to said rotation plane, and the X-ray image of the examination object are detected during the rotation of said rotating means and the movement of moving means, and an X-ray tomographic image and/or an X-ray three-dimensional image of said examination object are produced from the X-ray images detected at a plurality of rotation angles of said rotating means, and then said X-ray tomographic image and/or said X-ray three-dimensional image are displayed.