Title: X ray apparatus operation method, corresponding operation method of computer and corresponding device
Application Number: 200610075336 Application Date: 2006.04.10
Publication Number: 1843297 Publication Date: 2006.10.11
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: A61B6/02,H05G1/60
Applicant(s) Name: Siemens AG Address:
Inventor(s) Name: J. Bos
Attorney & Agent: shao yali li xiaoshu
Abstract:
     This invention relates to X-ray unit operating for e,g. copmuteda control device pivots an X-ray arrangement repeatedly between two final angular positions about a pivot axis. It controls the X-ray arrangement such that, respectively at a plurality of angular positions at recording times, projections of an object to be examined arranged in the region of the pivot axis and moving iteratively are detected and supplied to the control device, which stores the projections and the corresponding angular positions. The control device also receives a phase signal referring to the object to be examined and assigns information corresponding to a phase position of the object to be examined to each stored projection. For the reconstruction, a computer selects those projections where the phase position corresponds at least approximately to a reconstruction phase position. For each angular position in which it has selected at least one of the projections the computer checks whether it has selected one or more projections. If the computer has selected a projection for an angular position, it determines this projection as a reconstruction projection. If the computer has selected a plurality of projections for an angular position, it detects the reconstruction projection using these projections. Using the reconstruction projections the computer then detects a three-dimensional reconstruction of the object to be examined.
Time: 15
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