Method for operating an x-ray computer tomograph
AssigneeSiemens Aktiengesellschaft
InventorsGabriel Haras, Peter Aulbach
Life of this patent
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Abstract
A selectable mode of operation is disclosed for an X-ray computer tomograph for producing angiographical images. A patient accommodated on a couch is not moved relative to the measuring system in the z-direction, the entire area to be examined is irradiated at a prescribed first angle of rotation of the measuring system, and the X-ray radiation emerging from the area to be examined is detected isochronously using a matrix detector.
Claims29
A method for operating an X-ray computer tomograph including a rotatable measuring system which includes a first X-ray source and a first matrix detector in an opposite arrangement with respect to an axis of rotation, comprising:
- moving, in a selectable first mode of operation for producing sectional images, a patient accommodated on a couch relative to the measuring system in the z-direction, irradiating an area to be examined in circulating fashion by rotating the measuring system, and detecting the X-ray radiation emerging from the area to be examined using the first matrix detector;
- and
- not moving, in a selectable second mode of operation for producing angiographical images, the patient accommodated on the couch relative to the measuring system in the z-direction, irradiating the entire area to be examined at a first angle of rotation of the measuring system, and detecting the X-ray radiation emerging from the area to be examined isochronously using the first matrix detector.
An X-ray computer tomograph, comprising:
- a computer;
- and
- a rotatable measuring system, controllable by the computer, including a first X-ray source and a first matrix detector in an opposite arrangement with respect to an axis of rotation, the computer being provided with a computer program, which, when executed on the computer, carries out the following,
- moving, in a selectable first mode of operation for producing sectional images, a patient accommodated on a couch relative to the measuring system in the z-direction, irradiating an area to be examined in circulating fashion by rotating the measuring system, and detecting the X-ray radiation emerging from the area to be examined using the first matrix detector;
- and
- not moving, in a selectable second mode of operation for producing angiographical images, the patient accommodated on the couch relative to the measuring system in the z-direction, irradiating the entire area to be examined at a first angle of rotation of the measuring system, and detecting the X-ray radiation emerging from the area to be examined isochronously using the first matrix detector.
A method, comprising:
- using an X-ray computer tomograph, including a computer and a rotatable measuring system, controllable by the computer, and including a first X-ray source and a first matrix detector in an opposite arrangement with respect to an axis of rotation, for producing angiographical images.
Dependencies are inferred from the claim text.