Method for generating a 3D reconstruction of a body

A method for generating a 3D reconstruction image of a patient, comprising:

• providing a C-arm X-ray unit on which mounted an X-ray source and an X-ray detector;
• capturing a first projection of the patient by the C-arm X-ray unit from a first relative positioning of the X-ray source and the X-ray detector;
• capturing a second projection of the patient by the C-arm X-ray unit from a second relative positioning of the X-ray source and the X-ray detector;
• mapping a first projection data of the first projection onto a virtual detector;
• mapping a second projection data of the second projection onto the virtual detector;
• filtering the first mapping data in such a way as to generate mapping data that originates from both the first projection data and the second projection data;
• filtering the second projection data in such a way as to generate mapping data that originates from both the first projection data and the second projection data;
• generating a modified first projection by a reversal of the filtered first mapping data;
• generating a modified second projection by a reversal of the filtered second mapping data;
• and
• generating the 3D reconstruction image using a filtered back projection procedure based on the modified first projection and the modified second projection independently.