Patent ID: 8548116

Claim:
A method for CT scanning a heart with a dual-source CT device including two focus-detector systems with detectors of different widths in a system axis direction, and for reconstruction of tomographic image data, the method comprising: performing at least two circular scans at different z positions, the spacing in the z direction being chosen such that at least two first scan zones are produced which are scanned by way of a circular scan with two detectors and at least one second scan zone being produced which is scanned twice by one detector in two successive circular scans; reconstructing first tomographic image data in the at least two first scan zones using absorption data of a relatively narrower one of the two detectors and of a relatively wider one of the two detectors; reconstructing second image data in the at least one second scan zone from absorption data of the relatively wider detector from two successive circular scans at different z positions; and assembling a common tomographic image data set from at least the reconstructed first and second image data.