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Prostate Implant Reconstruction with Discrete Tomography

  • Xiaofeng Liu
  • Ameet K. Jain
  • Gabor Fichtinger
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4791)

Abstract

We developed a discrete tomography method for prostate implant reconstructions using only a limited number of X-ray projection images. A 3D voxel volume is reconstructed by back-projection and using distance maps generated from the projection images. The true seed locations are extracted from the voxel volume while false positive seeds are eliminated using a novel optimal geometry coverage model. The attractive feature of our method is that it does not require exact seed segmentation of the X-ray images and it yields near 100% correct reconstruction from only six images with an average reconstruction accuracy of 0.86 mm (std=0.46mm).

Keywords

Projection Image Seed Region Greedy Search Prostate Brachytherapy Discrete Tomography 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2007

Authors and Affiliations

  • Xiaofeng Liu
    • 1
  • Ameet K. Jain
    • 1
    • 2
  • Gabor Fichtinger
    • 1
  1. 1.Department of Computer Science, Johns Hopkins University, Baltimore, MDUSA
  2. 2.Philips Research North America, Briarcliff, NYUSA

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