Patent ID: 7035370

Claim:
A method for examining a body region, which performs a periodic movement in the form of a sequence of movement cycles including phases of the periodic movement, of an examination object, the method comprising: using a diagnostic apparatus with a radiation source to generate a radiation that penetrates through the examination object at different projection angles; using a detector system for detecting the radiation emerging from the radiation source; and determining data intervals at which data is taken using an electronic computing device, from a number n≧1 of successive movement cycles, with respect to the same phase of the periodic movement, the length of the data intervals producing at least one reconstruction interval that suffices for determining an image of at least the body region that performs the periodic movement from output data of the detector system which correspond to the detected radiation, wherein the number of movement cycles from which the data intervals of a reconstruction interval are taken varies during an examination pass, and, wherein in the case of higher frequency of the periodic movement, the number of movement cycles from which the data intervals of a reconstruction interval are determined is relatively greater than in the case of lower frequency and the length of the data intervals used for the reconstruction is relatively smaller.