| 摘要 |
<p>The present invention relates to medical 3D radiography, such as mammography, in which individual images of an object are taken at different projection angles and a 3D image subsequently synthesized from this image information. According to the invention, the object to be imaged is arranged locked in a object positioning means (16, 17) and during the imaging process, the x-ray source (13) is continuously moved with respect to location of the object and the object is irradiated at a number of different positions of the x-ray source (13). During an irradiation period of the imaging process, the object positioning means (16, 17) is moved as synchronized with the movement of the x-ray source (13). The imaging process preferably further includes such non-irradiation periods during which the object positioning means (16, 17) is moved in a direction opposite to that when turned as synchronized with the movement of the x-ray source (13) during an irradiation period.</p> |
