Patent ID: 7354196

Claim:
A device for recording projection images, comprising: a C-arm support; a radiation source arranged on the support and configured to be moved with the support to be positionable about a patient placed on a patient bed so that the radiation passes through the patient; a radiation detector arranged on an opposite side of the support relative to the radiation source and configured to be moved around the patient in accordance with movement of the radiation source; said apparatus having an imaging geometry in which the radiation source and the radiation detector face each other; said radiation detector further configured to detect radiation emitted by the radiation source and to generate projection images of the patient based on the detected radiation; and, a controller configured to: move, by a moving device, the radiation detector; (i) translatorily relative to the support; and, (ii) translatorily relative to the source; wherein the translatory movements of the radiation detector include parallel movements relative to a center radiation beam emitted by the radiation source; execute both a forward movement of the radiation detector relative to a lengthwise direction along the patient bed and a lifting movement of the radiation detector relative to the lengthwise direction along the patient bed; and, wherein, during said movements, said imaging geometry is preserved and the size of the area for which the image is to be recorded is increased, while said C-arm support is angled for caudal imaging with a tilting movement by a tilting device.