Emil Y Sidky

Summary

Affiliation: University of Chicago
Country: USA

Publications

  1. pmc Accurate image reconstruction from few-view and limited-angle data in diffraction tomography
    Samuel J LaRoque
    University of Chicago, Department of Radiology, Chicago, Illinois 60637, USA
    J Opt Soc Am A Opt Image Sci Vis 25:1772-82. 2008
  2. ncbi request reprint Short-scan SPECT imaging with non-uniform attenuation and 3D distance-dependent spatial resolution
    Xiaochuan Pan
    Department of Radiology, University of Chicago, 5841 S Maryland Avenue, Chicago, IL 60637, USA
    Phys Med Biol 47:2811-33. 2002
  3. ncbi request reprint Partial volume and aliasing artefacts in helical cone-beam CT
    Yu Zou
    Department of Radiology MC 2026, University of Chicago, 5841 S Maryland Ave, Chicago, IL 60637, USA
    Phys Med Biol 49:2365-75. 2004
  4. ncbi request reprint Local cone-beam tomography image reconstruction on chords
    Mark A Anastasio
    Department of Biomedical Engineering, Illinois Institute of Technology, Chicago 60616, USA
    J Opt Soc Am A Opt Image Sci Vis 24:1569-79. 2007
  5. ncbi request reprint A rebinned backprojection-filtration algorithm for image reconstruction in helical cone-beam CT
    Lifeng Yu
    Department of Radiology, Mayo Clinic, Rochester, MN, USA
    Phys Med Biol 52:5497-508. 2007
  6. pmc A constrained, total-variation minimization algorithm for low-intensity x-ray CT
    Emil Y Sidky
    Department of Radiology, University of Chicago, 5841 S Maryland Avenue, Chicago, Illinois 60637, USA
    Med Phys 38:S117. 2011
  7. pmc First-order convex feasibility algorithms for x-ray CT
    Emil Y Sidky
    Department of Radiology, University of Chicago, Chicago, Illinois 60637, USA
    Med Phys 40:031115. 2013
  8. pmc Convex optimization problem prototyping for image reconstruction in computed tomography with the Chambolle-Pock algorithm
    Emil Y Sidky
    Department of Radiology, University of Chicago, 5841 S Maryland Ave, Chicago, IL 60637, USA
    Phys Med Biol 57:3065-91. 2012
  9. pmc Enhanced imaging of microcalcifications in digital breast tomosynthesis through improved image-reconstruction algorithms
    Emil Y Sidky
    Department of Radiology, University of Chicago, 5841 S Maryland Avenue Chicago, Illinois 60637, USA
    Med Phys 36:4920-32. 2009
  10. pmc Image reconstruction in circular cone-beam computed tomography by constrained, total-variation minimization
    Emil Y Sidky
    Department of Radiology MC 2026, University of Chicago, 5841 S Maryland Ave, Chicago, IL 60637, USA
    Phys Med Biol 53:4777-807. 2008

Research Grants

Collaborators

Detail Information

Publications25

  1. pmc Accurate image reconstruction from few-view and limited-angle data in diffraction tomography
    Samuel J LaRoque
    University of Chicago, Department of Radiology, Chicago, Illinois 60637, USA
    J Opt Soc Am A Opt Image Sci Vis 25:1772-82. 2008
    ..Overall our results indicate that the TV-minimization algorithm can be successfully applied to DT image reconstruction under a variety of scan configurations and data conditions of practical significance...
  2. ncbi request reprint Short-scan SPECT imaging with non-uniform attenuation and 3D distance-dependent spatial resolution
    Xiaochuan Pan
    Department of Radiology, University of Chicago, 5841 S Maryland Avenue, Chicago, IL 60637, USA
    Phys Med Biol 47:2811-33. 2002
    ..We conduct computer simulation studies, and the results from these studies corroborate the observations obtained based upon the heuristic potato peeler perspective...
  3. ncbi request reprint Partial volume and aliasing artefacts in helical cone-beam CT
    Yu Zou
    Department of Radiology MC 2026, University of Chicago, 5841 S Maryland Ave, Chicago, IL 60637, USA
    Phys Med Biol 49:2365-75. 2004
    ..This investigation leads to an understanding of aliasing artefacts in helical, cone-beam CT image reconstruction. An ad hoc scheme is proposed to mitigate artefacts due to the nonlinear partial volume and aliasing artefacts...
  4. ncbi request reprint Local cone-beam tomography image reconstruction on chords
    Mark A Anastasio
    Department of Biomedical Engineering, Illinois Institute of Technology, Chicago 60616, USA
    J Opt Soc Am A Opt Image Sci Vis 24:1569-79. 2007
    ..A computer-simulation study is conducted to demonstrate the algorithms and compare their performance with an existing algorithm...
  5. ncbi request reprint A rebinned backprojection-filtration algorithm for image reconstruction in helical cone-beam CT
    Lifeng Yu
    Department of Radiology, Mayo Clinic, Rochester, MN, USA
    Phys Med Biol 52:5497-508. 2007
    ..We have also performed simulation studies to validate and evaluate the rebinned BPF algorithm...
  6. pmc A constrained, total-variation minimization algorithm for low-intensity x-ray CT
    Emil Y Sidky
    Department of Radiology, University of Chicago, 5841 S Maryland Avenue, Chicago, Illinois 60637, USA
    Med Phys 38:S117. 2011
    ..The algorithm design focuses on recovering structure on length scales comparable to a detector bin width...
  7. pmc First-order convex feasibility algorithms for x-ray CT
    Emil Y Sidky
    Department of Radiology, University of Chicago, Chicago, Illinois 60637, USA
    Med Phys 40:031115. 2013
    ..The convex feasibility approach can provide alternatives to unconstrained optimization approaches and at the same time allow for rapidly convergent algorithms for their solution-thereby facilitating the IIR algorithm design process...
  8. pmc Convex optimization problem prototyping for image reconstruction in computed tomography with the Chambolle-Pock algorithm
    Emil Y Sidky
    Department of Radiology, University of Chicago, 5841 S Maryland Ave, Chicago, IL 60637, USA
    Phys Med Biol 57:3065-91. 2012
    ..An example application modeling breast CT with low-intensity x-ray illumination is presented...
  9. pmc Enhanced imaging of microcalcifications in digital breast tomosynthesis through improved image-reconstruction algorithms
    Emil Y Sidky
    Department of Radiology, University of Chicago, 5841 S Maryland Avenue Chicago, Illinois 60637, USA
    Med Phys 36:4920-32. 2009
    ..The authors develop a practical, iterative algorithm for image-reconstruction in undersampled tomographic systems, such as digital breast tomosynthesis (DBT)...
  10. pmc Image reconstruction in circular cone-beam computed tomography by constrained, total-variation minimization
    Emil Y Sidky
    Department of Radiology MC 2026, University of Chicago, 5841 S Maryland Ave, Chicago, IL 60637, USA
    Phys Med Biol 53:4777-807. 2008
    ..Although the algorithm is presented in the context of circular cone-beam image reconstruction, it can also be applied to scanning geometries involving other x-ray source trajectories...
  11. ncbi request reprint Region of interest reconstruction from truncated data in circular cone-beam CT
    Lifeng Yu
    Department of Radiology, The University of Chicago, Chicago, IL 60637, USA
    IEEE Trans Med Imaging 25:869-81. 2006
    ..Quantitative results in these studies demonstrate that the proposed BPF algorithms for circular cone-beam CT can reconstruct ROI images free of truncation artifacts...
  12. ncbi request reprint Minimum data image reconstruction algorithms with shift-invariant filtering for helical, cone-beam CT
    Emil Y Sidky
    Department of Radiology MC 2026, University of Chicago, IL 60637, USA
    Phys Med Biol 50:1643-57. 2005
    ..These reconstruction algorithms with shift-invariant filtering can accept data with transverse truncation, and hence allow for minimum data image reconstruction...
  13. ncbi request reprint Noise properties of chord-image reconstruction
    Dan Xia
    Department of Radiology, The University of Chicago, Chicago, IL 60637, USA
    IEEE Trans Med Imaging 26:1328-44. 2007
    ..Additionally, it is observed that, in many situations, large data sets contain extraneous data that may not reduce the ROI-image variances...
  14. ncbi request reprint Impact of polychromatic x-ray sources on helical, cone-beam computed tomography and dual-energy methods
    Emil Y Sidky
    Department of Radiology MC 2026, University of Chicago, 5841 S Maryland Ave, Chicago, IL 60637, USA
    Phys Med Biol 49:2293-303. 2004
    ..A pre-reconstruction dual-energy technique is developed to reduce beam-hardening artefacts and enhance contrast in soft tissue...
  15. ncbi request reprint Theory and algorithms for image reconstruction on chords and within regions of interest
    Yu Zou
    University of Chicago, Department of Radiology, 5841 S Maryland Avenue, Chicago, Illinois 60637, USA
    J Opt Soc Am A Opt Image Sci Vis 22:2372-84. 2005
    ..Quantitative results of these studies verify and demonstrate the proposed theory and algorithms...
  16. ncbi request reprint Image reconstruction in regions-of-interest from truncated projections in a reduced fan-beam scan
    Yu Zou
    Department of Radiology, The University of Chicago, Chicago, IL 60637, USA
    Phys Med Biol 50:13-27. 2005
    ....
  17. ncbi request reprint Reconstruction of 3D regions-of-interest from data in reduced helical cone-beam scans
    Xiaochuan Pan
    Department of Radiology, The University of Chicago, 5841 S Maryland Avenue, Chicago, IL 60637, USA
    Technol Cancer Res Treat 4:143-50. 2005
    ..This work may have significant practical implications because a reduced scan in CT often translates to reduced motion artifacts and reduced radiation dose delivered to the subject...
  18. ncbi request reprint Feasibility of half-data image reconstruction in 3-D reflectivity tomography with a spherical aperture
    Mark A Anastasio
    Department of Biomedical Engineering, Illinois Institute of Technology, Chicago, IL 60616, USA
    IEEE Trans Med Imaging 24:1100-12. 2005
    ..An iterative reconstruction method is utilized for reconstruction of a simulated 3-D object from noiseless and noisy half-scan and half-time data functions...
  19. pmc Image reconstruction exploiting object sparsity in boundary-enhanced X-ray phase-contrast tomography
    Emil Y Sidky
    Department of Radiology, The University of Chicago, Chicago, IL 60637, USA
    Opt Express 18:10404-22. 2010
    ..We demonstrate that the algorithms can reconstruct accurate boundary-enhanced images from highly incomplete few-view projection data...
  20. doi request reprint Analysis of image-reconstruction algorithms for circular, cone-beam CT by Hotelling observer performance on a detection task
    Emil Y Sidky
    University of Chicago, Department of Radiology, Chicago, IL 60637, USA
    Conf Proc IEEE Eng Med Biol Soc 2009:997-9. 2009
    ..This task-based metric can be applied to any linear image-reconstruction algorithm, such as the FDK algorithm or other more recent approximate methods for image-reconstruction in circular, cone-beam CT...
  21. pmc Algorithm-enabled low-dose micro-CT imaging
    Xiao Han
    Department of Radiology, The University of Chicago, IL 60637, USA
    IEEE Trans Med Imaging 30:606-20. 2011
    ....
  22. pmc Evaluation of sparse-view reconstruction from flat-panel-detector cone-beam CT
    Junguo Bian
    Department of Radiology, The University of Chicago, Chicago, IL, USA
    Phys Med Biol 55:6575-99. 2010
    ..A practical implication of the study is that the optimization of algorithm design and implementation can be exploited for considerably reducing imaging effort and radiation dose in CBCT...
  23. pmc Optimization-based image reconstruction from sparse-view data in offset-detector CBCT
    Junguo Bian
    Department of Radiology, The University of Chicago, Chicago, IL 60637, USA
    Phys Med Biol 58:205-30. 2013
    ....
  24. pmc Optimization-based reconstruction of sparse images from few-view projections
    Xiao Han
    Department of Radiology, The University of Chicago, Chicago, IL 60637, USA
    Phys Med Biol 57:5245-73. 2012
    ..Study results suggest that carefully designed reconstruction programs and algorithms can yield accurate reconstructions of sparse images from few-view projections...
  25. pmc Comparison of human and Hotelling observer performance for a fan-beam CT signal detection task
    Adrian A Sanchez
    Department of Radiology, The University of Chicago, Chicago, Illinois 60637, USA
    Med Phys 40:031104. 2013
    ..Therefore, this study serves as a baseline for relating human and ideal observer performance in the case of fan-beam CT...

Research Grants1

  1. Helical CT Reconstruction and Lung Cancer Screening
    EMIL SIDKY; Fiscal Year: 2007
    ..Computer-aided diagnosis programs for lung nodule detection may be employed as an observer to assess various image reconstruction and processing algorithms. ..