Patent ID: 7856077
Filing Date: 2010-12-21
Classification: A61B

Abstract:
1. A CT scanner for helical scanning of an examination object which has at least one portion undergoing periodic motion, comprising: at least one bearing apparatus, arranged along a system axis of the CT scanner, for bearing the examination object; two scanning systems, rotatable around the system axis and arranged coaxially, each respectively having a focus from which a beam is emitable and a flat-design detector array, arranged opposite the respective focus, including a multiplicity of distributed detector elements to detect the rays of the beam, wherein projection data is generatable by the scanning systems which represents attenuation of the rays while traversing the examination object, at least one of the at least one bearing apparatus and the scanning systems are displaceable along the system axis; first means for detecting rest and movement phases of the examination object, which has at least one portion undergoing periodic motion in the form of measurement data, the first means for detecting being configured to detect measurement data from an electrocardiogram; and second means for, based on at least one of the detected measurement data and data derived from the detected measurement data, at least one of triggering and controlling a displacement of at least one of the scanning systems and the at least one bearing apparatus along the system axis at least one of before and during the helical scanning of the examination object, wherein