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Article
Computed Tomography Simulation With Superquadrics
Medical Physics (2005)
  • Jiehua Zhu, Georgia Southern University
  • Shiying Zhao, University of Missouri
  • Yangbo Ye, University of Iowa
  • Ge Wang, University of Iowa
Abstract
Accurate and efficient simulation of an x-ray transform for representative structures plays an important role in research and development of x-ray CT, for the evaluation and improvement of CT image reconstruction algorithms, in particular. Superquadrics are a family of three-dimensional objects, which can be used to model a variety of anatomical structures. In this paper, we propose an algorithm for the computation of x-ray transforms for superellipsoids and tori with a monochromatic x-ray. Their usefulness is demonstrated by projection and reconstruction of a superquadric-based thorax phantom. Our work indicates that superquadric modeling provides a more realistic visualization than quadratic modeling, and a faster computation than spline methods.
Keywords
  • Computed tomography,
  • Simulation,
  • Superquadrics
Disciplines
Publication Date
October, 2005
DOI
10.1118/1.2040727
Citation Information
Jiehua Zhu, Shiying Zhao, Yangbo Ye and Ge Wang. "Computed Tomography Simulation With Superquadrics" Medical Physics Vol. 32 Iss. 10 (2005) p. 3136 - 3143 ISSN: 2473-4209
Available at: http://works.bepress.com/jiehua_zhu/42/