Patent ID: 8306295

Claim:
A method for generating computed tomography image data records of a patient in a heart CT scan for a perfusion control by applying contrast agent comprising: scanning the patient in a region of a beating heart using an X-ray CT system and generating CT data records with correlated movement information of the heart during several heart cycles with several cycle phases; transforming the generated CT data records into a local frequency space; dividing at least one transformed CT data record into at least two transformed CT partial data records, in each instance according to different local frequency ranges; compiling a new transformed CT data record from several CT partial data records in each instance, with CT partial data records of at least one first local frequency range being used without accounting for correlated movement information of the heart and CT partial data records of at least one second local frequency range or a complete transformed CT data record being used by selecting a predetermined movement phase of the heart during several heart cycles in each instance; back-transforming the new transformed CT data record; and determining and indicating perfusion parameters by using the back-transformed new CT data records.