AUTO POSITIONING OF X-RAY TUBE SUPPORT WITH RESPECT TO DETECTOR
The present invention relates to medical imaging. In order to facilitate the alignment of an X-ray tube with respect to an X-ray detector, a positioning system (160) is provided for controlling an X-ray tube support system to align an X-ray tube with an X-ray detector. The positioning system compris...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | The present invention relates to medical imaging. In order to facilitate the alignment of an X-ray tube with respect to an X-ray detector, a positioning system (160) is provided for controlling an X-ray tube support system to align an X-ray tube with an X-ray detector. The positioning system comprises a radio frequency (RF) based localization system (170), an optical camera (180), and a controller (190). The RF-based localization system comprises a first RF device (172) that is attachable to the X-ray detector, and a plurality of second RF devices (174, 176, 178) that are arranged in a known geometric relationship to the X-ray tube (112) and configured to use an RF signal to localize the first RF device so as to provide first position information of the X-ray detector. The controller is configured to generate, based on the first position information of the X-ray detector, a first control signal that is usable for controlling the X-ray tube support system to move the X-ray tube to perform a first alignment of the X-ray tube with respect to the X-ray detector. After the first alignment, the controller is configured to trigger the optical camera to acquire an image to localize the X-ray detector so as to provide second position information of the X-ray detector, and to generate, based on the second position information of the X-ray detector, a second control signal that is usable for controlling the X-ray tube support system to move the X-ray tube to perform a second alignment of the X-ray tube with respect to the X-ray detector. |
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