Exact ROI image reconstruction with perturbed source trajectories in C-arm CT

Dan Xia, Emil Y. Sidky, Lifeng Yu, Yu Zou, Xiaochuan Pan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

In C-arm CT, the actual trajectory executed by the x-ray source may deviate from the designed scan due to mechanical error. Without taking into account this deviation, artifacts will appear in the reconstructed image. In this work, we propose to use the recently developed backprojection filtration (BPF) algorithm, which can accomodate general trajectories, to incorporate the deviation of the source trajectory. The preliminary studies demonstrate that this algorithm provides the exact image reconstruction in the case that the deviation of the source trajectory from the ideal trajectory can be measured.

Original languageEnglish (US)
Title of host publication2005 IEEE Nuclear Science Symposium Conference Record -Nuclear Science Symposium and Medical Imaging Conference
Pages1942-1945
Number of pages4
DOIs
StatePublished - Dec 1 2005
EventNuclear Science Symposium Conference Record, 2005 IEEE - , Puerto Rico
Duration: Oct 23 2005Oct 29 2005

Publication series

NameIEEE Nuclear Science Symposium Conference Record
Volume4
ISSN (Print)1095-7863

Other

OtherNuclear Science Symposium Conference Record, 2005 IEEE
CountryPuerto Rico
Period10/23/0510/29/05

Keywords

  • C-arm CT
  • Cone-beam
  • Reconstruction
  • Trajectory deviation

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging

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