Method for producing an image by computer tomography
AssigneeSiemens Aktiengesellschaft
InventorsOtto Sembritzki, Heinrigh Wallschlaeger
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Abstract
In a method for producing an image of an examination subject by computed tomography using an x-ray source that moves around the examination subject for producing the image, a number of projections serving for the production of the image are registered during at least one revolution of the x-ray source around the examination subject. Motion artifacts of the image are at least reduced by identifying data representing a part of the image exhibiting a motion, and replacing that data with data complementary to the data exhibiting movement.
Claims4
A method for producing an image of an examination subject by computed tomography by rotating an x-ray source around an examination subject with a plurality of projections for production of the image being registered during at least one revolution of the x-ray source around the examination subject, comprising the steps of:
- determining data in said projections that are falsified by a movement of the examination subject solely by identifying a deviation of the data of a projection from their complementary data and designating said data or their complementary data as falsified if the deviation exceeds an upper limit value;
- and
- replacing at least the data of a projection falsified by the movement of the examination subject with the data complementary thereto.
Dependencies are inferred from the claim text.