| 摘要 |
The present invention relates to presenting X-ray image data, and describes in particular spotlight X-ray mapping. In order to provide X-ray image information of regions of interest larger than the detector's size with reduced X-ray dose for the patient while maintaining the image quality, an X-ray imaging system (10) for spotlight X-ray mapping is provided that comprises an X-ray image acquisition device (12) with an X-ray source (14), an X-ray detector (16), and an X-ray detectable ruler arrangement (18). The system also comprises an image processor (20), and a display (22). The X-ray image acquisition device is configured to acquire at least first and second images from different regions of interest of an object, wherein the detectable ruler arrangement and the object are provided in a determined spatial relation for each of the images. The image processor is configured to identify at least a segment of the ruler arrangement in each of the at least first and second images, and to assign the identified ruler segment to the respective X-ray image, and also to determine a spatial position of the respective segment in relation to the ruler arrangement, as well as to combine the at least first and second images according to their spatial relation based on the identified segment in the respective image. Further, the display is configured to display the combined images as a spotlight X-ray map (32). |
