Method for taking computed tomography scans with the aid of a CT unit, and a CT unit
AssigneeSiemens Aktiengesellschaft
InventorsHerbert Bruder, Thomas Flohr, Karl Stierstorfer
Life of this patent
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Abstract
A method is for taking computed tomography scans with the aid of a CT unit and to a CT unit. An X-ray tube is moved in a circle or spiral about a z-axis in combination with a detector situated opposite and an object is scanned. The X-ray tube includes a jumping focus with two or more different jumping focal positions relative to the X-ray tube. Parallel data records are formed from the detector data obtained, and tomograms are reconstructed therefrom. When forming the parallel data records, account is taken of the different position of the respectively current jumping focus in relation to the X-ray tube (=jumping focal position) in the radial direction.
Claims18
A method for taking computed tomography scans with the aid of a CT unit including an X-ray tube movable in at least one of a circle and spiral about a z-axis in combination with a detector situated opposite, the X-ray tube including a jumping focus with at least two different jumping focal positions relative to the X-ray tube, the method comprising:
- forming parallel data records from detector data obtained from scanning an object with the X-ray tube, such that when forming the parallel data records, account is taken of the different position of the respectively current jumping focus in relation to the X-ray tube in the radial direction;
- and
- reconstructing tomograms from the parallel data records.
A computed tomography unit comprising:
- an X-ray tube, movable in at least one of a circle and spiral about a z-axis in combination with a multirow detector situated opposite thereof, and adapted to scan an object, the X-ray tube having a jumping focus with at least two different jumping focal positions relative to the X-ray tube;
- and
- means for reconstructing tomograms from parallel data records formed from detector data obtained from scanning the object with the X-ray tube, wherein, when forming the parallel data records, account is taken of the different position of the respectively current jumping focus in relation to the X-ray tube in the radial direction.
Dependencies are inferred from the claim text.