Iterative circular conebeam CT reconstruction using fast hierarchical backprojection/reprojection operators

Jeffrey Brokish, Daniel B. Keesing, Yoram Bresler

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

Abstract

This is the first report on a new fast statistical iterative reconstruction algorithm for conebeam with a circular source trajectory, accelerated by InstaRecon's fast O(N3logN) hierarchical cone beam backprojection1 and reprojection algorithms. We report on the results of image quality and run-time comparisons with iterative algorithms based on conventional backprojection and reprojection. We demonstrate that the iterative algorithm introduced here can provide Image quality indistinguishable from an iterative algorithm using conventional BP/RP operators, while providing almost a 10x speedup in reconstruction rates. Combining the 10x algorithmic acceleration with additional hardware acceleration by FPGA, Cell, or GPU implementation, this work indicates the feasibility of iterative reconstruction algorithms for dose reduction and image quality improvement in routine CT practice, at competitive speeds and affordable cost.

Original languageEnglish (US)
Title of host publicationMedical Imaging 2010
Subtitle of host publicationPhysics of Medical Imaging
EditionPART 1
DOIs
StatePublished - Dec 1 2010
EventMedical Imaging 2010: Physics of Medical Imaging - San Diego, CA, United States
Duration: Feb 15 2010Feb 18 2010

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
NumberPART 1
Volume7622
ISSN (Print)1605-7422

Other

OtherMedical Imaging 2010: Physics of Medical Imaging
CountryUnited States
CitySan Diego, CA
Period2/15/102/18/10

Fingerprint

operators
Image quality
Quality Improvement
Field programmable gate arrays (FPGA)
Mathematical operators
Cones
cones
hardware
Trajectories
trajectories
costs
Hardware
Costs and Cost Analysis
dosage
cells
Costs

Keywords

  • Cone-beam
  • Fast algorithm
  • Hierarchical algorithm
  • Iterative reconstruction
  • Tomography

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Radiology Nuclear Medicine and imaging

Cite this

Brokish, J., Keesing, D. B., & Bresler, Y. (2010). Iterative circular conebeam CT reconstruction using fast hierarchical backprojection/reprojection operators. In Medical Imaging 2010: Physics of Medical Imaging (PART 1 ed.). [76221R] (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 7622, No. PART 1). https://doi.org/10.1117/12.844026

Iterative circular conebeam CT reconstruction using fast hierarchical backprojection/reprojection operators. / Brokish, Jeffrey; Keesing, Daniel B.; Bresler, Yoram.

Medical Imaging 2010: Physics of Medical Imaging. PART 1. ed. 2010. 76221R (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 7622, No. PART 1).

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

Brokish, J, Keesing, DB & Bresler, Y 2010, Iterative circular conebeam CT reconstruction using fast hierarchical backprojection/reprojection operators. in Medical Imaging 2010: Physics of Medical Imaging. PART 1 edn, 76221R, Progress in Biomedical Optics and Imaging - Proceedings of SPIE, no. PART 1, vol. 7622, Medical Imaging 2010: Physics of Medical Imaging, San Diego, CA, United States, 2/15/10. https://doi.org/10.1117/12.844026
Brokish J, Keesing DB, Bresler Y. Iterative circular conebeam CT reconstruction using fast hierarchical backprojection/reprojection operators. In Medical Imaging 2010: Physics of Medical Imaging. PART 1 ed. 2010. 76221R. (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; PART 1). https://doi.org/10.1117/12.844026
Brokish, Jeffrey ; Keesing, Daniel B. ; Bresler, Yoram. / Iterative circular conebeam CT reconstruction using fast hierarchical backprojection/reprojection operators. Medical Imaging 2010: Physics of Medical Imaging. PART 1. ed. 2010. (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; PART 1).
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