Detection and/or correction of residual iodine artifacts in spectral computed tomography (ct) imaging

A device, comprising:

• a processor configured to:
• receive a signal indicating residual iodine identified in a Compton scatter image and a photo-electric effect image reconstructed from decomposed line integrals from a contrast enhanced spectral scan by an imaging system and de-noised;
• correct the Compton scatter image and the photo-electric effect image based on the identified residual iodine voxels;
• and
• produce a virtual non-contrast image with the corrected Compton scatter and photo-electric effect images.

A method, comprising:

• receiving line integrals from a contrast enhanced spectral scan;
• decomposing the line integrals into at least Compton scatter and photo-electric effect line integrals;
• de-noising the decomposed spectral image data;
• reconstructing the de-noise decomposed spectral image data to generate a Compton scatter image and a photo-electric effect image;
• identifying residual iodine voxels in the Compton scatter image and the photo-electric effect image corresponding to residual iodine artifact;
• and
• producing a corrected virtual non-contrast image using the identified residual iodine voxels.