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Effects of x-ray and CT image enhancements on the robustness and accuracy of a rigid 3D/2D image registration.

Publication ,  Journal Article
Kim, J; Yin, F-F; Zhao, Y; Kim, JH
Published in: Med Phys
April 2005

A rigid body three-dimensional/two-dimensional (3D/2D) registration method has been implemented using mutual information, gradient ascent, and 3D texturemap-based digitally reconstructed radiographs. Nine combinations of commonly used x-ray and computed tomography (CT) image enhancement methods, including window leveling, histogram equalization, and adaptive histogram equalization, were examined to assess their effects on accuracy and robustness of the registration method. From a set of experiments using an anthropomorphic chest phantom, we were able to draw several conclusions. First, the CT and x-ray preprocessing combination with the widest attraction range was the one that linearly stretched the histograms onto the entire display range on both CT and x-ray images. The average attraction ranges of this combination were 71.3 mm and 61.3 deg in the translation and rotation dimensions, respectively, and the average errors were 0.12 deg and 0.47 mm. Second, the combination of the CT image with tissue and bone information and the x-ray images with adaptive histogram equalization also showed subvoxel accuracy, especially the best in the translation dimensions. However, its attraction ranges were the smallest among the examined combinations (on average 36 mm and 19 deg). Last the bone-only information on the CT image did not show convergency property to the correct registration.

Duke Scholars

Published In

Med Phys

DOI

ISSN

0094-2405

Publication Date

April 2005

Volume

32

Issue

4

Start / End Page

866 / 873

Location

United States

Related Subject Headings

  • X-Rays
  • Tomography, X-Ray Computed
  • Radiography, Thoracic
  • Radiographic Image Interpretation, Computer-Assisted
  • Radiographic Image Enhancement
  • Phantoms, Imaging
  • Nuclear Medicine & Medical Imaging
  • Models, Theoretical
  • Imaging, Three-Dimensional
  • Image Processing, Computer-Assisted
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Kim, J., Yin, F.-F., Zhao, Y., & Kim, J. H. (2005). Effects of x-ray and CT image enhancements on the robustness and accuracy of a rigid 3D/2D image registration. Med Phys, 32(4), 866–873. https://doi.org/10.1118/1.1869592
Kim, Jinkoo, Fang-Fang Yin, Yang Zhao, and Jae Ho Kim. “Effects of x-ray and CT image enhancements on the robustness and accuracy of a rigid 3D/2D image registration.Med Phys 32, no. 4 (April 2005): 866–73. https://doi.org/10.1118/1.1869592.
Kim, Jinkoo, et al. “Effects of x-ray and CT image enhancements on the robustness and accuracy of a rigid 3D/2D image registration.Med Phys, vol. 32, no. 4, Apr. 2005, pp. 866–73. Pubmed, doi:10.1118/1.1869592.

Published In

Med Phys

DOI

ISSN

0094-2405

Publication Date

April 2005

Volume

32

Issue

4

Start / End Page

866 / 873

Location

United States

Related Subject Headings

  • X-Rays
  • Tomography, X-Ray Computed
  • Radiography, Thoracic
  • Radiographic Image Interpretation, Computer-Assisted
  • Radiographic Image Enhancement
  • Phantoms, Imaging
  • Nuclear Medicine & Medical Imaging
  • Models, Theoretical
  • Imaging, Three-Dimensional
  • Image Processing, Computer-Assisted