1. A method for providing a 3D image data record of a biological object with a suppressed aliasing artifact overlapping a field of view, wherein an aliasing artifact overlapping the field of view is caused by an incomplete geometric capture of the biological object by a computed tomograph, comprising: providing a first 3D image data record describing a subarea of the biological object; obtaining a second 3D image data record of the biological object by the computed tomograph, wherein the second 3D image data record includes data relating to the subarea of the biological object described by the first 3D image data record; registering the first 3D image data record with the second 3D image data record; extending and/or amending data of the second 3D image data record as a function of data of the first 3D image data record so that a part of the data of the second 3D image data record can be assigned to the aliasing artifact overlapping the field of view; and generating a modified second 3D image data record with the suppressed aliasing artifact overlapping the field of view.