Correction for human head motion in helical x-ray CT

  title={Correction for human head motion in helical x-ray CT},
  author={J.-h. Kim and Tao Sun and Ahmad Alcheikh and Zdenka Kuncic and Johan Nuyts and Roger R. Fulton},
  journal={Physics in Medicine \& Biology},
  pages={1416 - 1438}
  • J. KimT. Sun R. Fulton
  • Published 25 January 2016
  • Medicine, Physics
  • Physics in Medicine & Biology
Correction for rigid object motion in helical CT can be achieved by reconstructing from a modified source-detector orbit, determined by the object motion during the scan. This ensures that all projections are consistent, but it does not guarantee that the projections are complete in the sense of being sufficient for exact reconstruction. We have previously shown with phantom measurements that motion-corrected helical CT scans can suffer from data-insufficiency, in particular for severe motions… 

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