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US 6,050,724 AGranted
Method of and device for position detection in X-ray imaging
AssigneeU. S. Philips Corporation
InventorsGeorg Schmitz, Jorg Sabczynski
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AssigneeU. S. Philips Corporation
InventorsGeorg Schmitz, Jorg Sabczynski
Estimating the term…
The invention relates to a method of position detection in X-ray imaging, and to a device for carrying out such a method by means of an X-ray apparatus, a detector device, including at least two detector elements, and an indicator device. The exact association of the X-ray image with the object imaged is very important notably for intraoperative imaging. Exact knowledge of the position and orientation of the components of the X-ray apparatus associated with the imaging system is required for this purpose. However, it is often problematic that the lines of sight of the position measuring system are obscured by attending staff or other apparatus. Therefore, in the device according to the invention the detector device is mounted on the X-ray apparatus and the indicator device is provided so as to be stationary on the object to be examined or stationary relative to the object to be examined. Also described is a method of position detection in X-ray imaging by means of such a device.
A method of position detection in X-ray imaging, in which
A device for X-ray imaging, including an X-ray apparatus, a detector device mounted on the X-ray apparatus with at least two detector elements and an indicator device which is provided so as to be stationary relative to an object to be examined, and control and processing means configured for determining the position of the X-ray apparatus in an object co-ordinate system, which is coupled to the object to be examined, and for determining subsequently the position in the object co-ordinate system of an object point which is imaged as an image point in an X-ray image.
Dependencies are inferred from the claim text.