Patent ID: 7822171

Claim:
A computer tomography apparatus for examination of an object of interest, the computer tomography apparatus comprising an electromagnetic radiation source adapted to emit electromagnetic radiation to an object of interest; a detecting device adapted to detect electromagnetic radiation generated by the electromagnetic radiation source and passed through the object of interest; a motion generation device adapted to move the electromagnetic radiation source and the detecting device with respect to the object of interest along a first trajectory and along at least one second trajectory which differs from the first trajectory, wherein the at least one second trajectory is selected in such a manner that electromagnetic radiation detected during performing the at least one second trajectory provides data which complete mathematically incomplete data detected during performing the first trajectory to thereby allow a reconstruction of structural information concerning the object of interest; and a determination unit adapted to determine the structural information based on signals received by the detecting device during performing the first trajectory and during performing the at least one second trajectory, wherein the structural information is determined without using helical data values whose projected helical data values on a planar detector: (i) are disposed below or above a projection of a circular trajectory, (ii) are disposed below a lower projection or above a higher projection of adjacent windings of a portion of a helical trajectory or (iii) are disposed below a lower line or above a higher line to tangency and which comprise a coordinate on the planar detector which is disposed between two points of tangency of the lower or upper line of tangency.