Reduction of CT artifacts caused by metallic implants.
A technique to reduce metallic implant artifacts on computed tomography scans is presented. The implant boundaries are determined semiautomatically; the missing projection data are replaced by linear interpolation. The complete procedure requires 1-2 minutes per scan. Images with greatly improved quality were obtained in the presence of surgical clips and pelvic implants; success is limited in highly structured regions, such as the facial skull.
D000465:Algorithms; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008670:Metals; D019736:Prostheses and Implants; D014057:Tomography, X-Ray Computed
D008670:Metals