Method for obtaining three-dimensional (3D) reconstruction of image object, involves adjusting focus point of X-ray tube at which electrons emitted from cathode to anode is focused

摘要

The method involves arranging C-arm between X-ray tube and an X-ray detector. The determination (S16) is made whether position of the C-arm is deviated or not. The positions of the C-arm are detected (S22). Two-dimensional images of the image object are recorded. The focus point of X-ray tube at which electrons emitted from cathode to anode are focused is adjusted (S26). The three-dimensional reconstruction of the image objects is calculated (S28) according to focus point of x-ray tube. An independent claim is included for X-ray imaging device.