Patent ID: 11864940
Assignee: EOS IMAGING
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A

Claim 28:
29. A method of radiography of an organ of a patient, the method comprising:
first vertical scanning of said organ by a first radiation source and a first detector cooperating to make a first two-dimensional raw image of said organ;
second vertical scanning of said organ by a second radiation source and a second detector cooperating to make a second two-dimensional raw image of said organ, said first vertical scanning and said second vertical scanning being performed synchronously, said first and second raw images viewing said organ of said patient according to different angles of incidence; and
performing computed correction processing on both said first and second raw images, on at least part of data associated with scanned patient height, for at least overweight or obese patients, to reduce, between first and second corrected images, cross-scattering existing between said first and second raw images, said computed correction processing on both said first and second raw images comprising:
making a patient-specific model, using at least both of the first and second raw images, said patient-specific model being a voxelized geometry corresponding to a combination of simple geometries,
obtaining a patient-specific scatter matrix representing radiation scattering of said patient-specific model from a pre-computed base of matrices corresponding to said simple geometries by interpolation between matrices among the pre-computed base of matrices, the pre-computed base of matrices being obtained with simulations,
determining a patient-specific representation of radiation scattering by said patient-specific model, by simulating the radiation scattering of said voxelized geometry based on the patient-specific scatter matrix, and
processing said patient-specific radiation scattering representation on both said first and second raw images to obtain said first and second corrected images.