Patent ID: 7289595

Claim:
A method for generating an image of a subject by computed tomography with automatic, computerized calculation of an orthogonal x-ray attenuation of a subject supported on a subject table of a computed tomography apparatus using a reference x-ray attenuation measured along a referenced projection direction, said computer tomography apparatus having a rotation axis around which a data acquisition unit is rotatable to obtain computed tomography data, said method comprising the steps of: automatically detecting a table height of said subject table in said computed tomography apparatus; from said table height, automatically electronically determining a vertical position of the subject with respect to said rotation axis, and automatically electronically calculating said orthogonal x-ray attenuation dependent on said vertical position of the subject with respect to said rotation axis; with said data acquisition unit, acquiring said computed tomography data from the subject supported on the subject table at said table height; and electronically reconstructing an image of the subject from said computed tomography data using an image reconstruction algorithm employing said orthogonal x-ray attenuation.