Patent ID: 8744161

Claim:
A method for scattered beam correction in a CT examination of an object in a CT system, comprising: scanning the object via at least two emitter-detector systems arranged angularly offset in a plane, each emitter of the at least two emitter-detector systems being adapted to emit a beam bundle toward a scattered beam grid of a respectively opposing detector of the at least two emitter-detector systems, and generating original projection data records based upon the scanning; reconstructing the object using the original projection data records obtained during the scan of the object from at least one detector of at least two emitter-detector systems; determining scattered radiation generated by each emitter of the at least two emitter-detector systems exclusively in a direction of original beams of the at least one other of the at least two emitters relative to a respectively opposing detector of the at least one other emitter, based on the reconstructed object, wherein scattered radiation produced on a surface of the object is exclusively taken into consideration; generating corrected projection data records by removing the determined scattered radiation from the original projection data records; reconstructing the object using the corrected projection data records; examining at least one abort criterion; and either implementing a further iteration of the determining of the scattered radiation, generating, reconstructing and examining, or issuing a result of the reconstruction, depending on a result of the examining of the at least one abort criterion.