Patent ID: 7844095

Claim:
A method for virtual bowel cleaning, comprising: producing a first volume data record, recorded by a CT scanner, of at least one area of interest of the bowel; identifying voxels relating to a bowel content and suitably modifying the identified voxels in at least one of the first volume data record and a data record derived from the first volume data record; producing at least one further volume data record of the area of interest, which was recorded by the CT scanner with a different spectral distribution than the first volume data record; and identifying at least some of the voxels relating to the bowel content on the basis of a difference in at least one of a density and an atomic number between the bowel content and the bowel wall, the at least one of the density and atomic number being obtained from data in the first and the further volume data record taking account of the different spectral distributions; and producing a modified data record which includes the bowel without any visible bowel content and visualizing the modified data record.