Reduction of CT artifacts caused by metallic implants

Radiology. 1987 Aug;164(2):576-7. doi: 10.1148/radiology.164.2.3602406.


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.

MeSH terms

  • Algorithms
  • Humans
  • Image Processing, Computer-Assisted*
  • Metals
  • Prostheses and Implants*
  • Tomography, X-Ray Computed*


  • Metals