Abstract: A medical imaging system comprises a C-arm unit having an x-ray source for generating x-rays and a receptor for obtaining image exposures from received x-rays. The C-arm unit moves the x-ray source and receptor along an image acquisition path between at least first and second exposure positions. The C-arm unit rotates about a central axis. Source and receptor brackets mount the x-ray source and receptor, respectively, to the C-arm unit. The source and receptor brackets move at least one of the x-ray source and receptor in a radial direction toward and away from the central axis of the C-arm unit to maintain a desired distance between the patient and the x-ray source and receptor. An image processor collects a series of image exposures from the receptor and constructs a three dimensional volumetric data set which is displayed on a display.

Abstract: A method and system for automatic positioning of a radiology apparatus the type comprising an X-ray emission means capable of emitting an X-ray beam in a so-called viewing direction, and an X-ray reception means, the positioning being carried out in relation to an object to be X-rayed, in which a first direction is determined, a first cone angle of displacement relative to the first direction that is less than the first angle is determined, the viewing direction being calculated so that the image quality will be superior to what would be obtained with a viewing direction parallel to the first direction.