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Dynamic Cone Beam Reconstruction Using a New Level Set Formulation

  • Andreas Keil
  • Jakob Vogel
  • Günter Lauritsch
  • Nassir Navab
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5762)

Abstract

This paper addresses an approach toward tomographic reconstruction from rotational angiography data as it is generated by C-arms in cardiac imaging. Since the rotational acquisition scheme forces a trade-off between consistency of the scene and reasonable baselines, most existing reconstruction techniques fail at recovering the 3D+t scene.

We propose a new reconstruction framework based on variational level sets including a new data term for symbolic reconstruction as well as a novel incorporation of motion into the level set formalism. The resulting simultaneous estimation of shape and motion proves feasible in the presented experiments. Since the proposed formulation offers a great flexibility in incorporating other data terms as well as hard or soft constraints, it allows an adaption to a wider range of problems and could be of interest to other reconstruction settings as well.

Keywords

Active Contour Soft Constraint Tomographic Reconstruction Algebraic Reconstruction Technique Simultaneous Algebraic Reconstruction Technique 
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.

Supplementary material

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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Andreas Keil
    • 1
  • Jakob Vogel
    • 1
  • Günter Lauritsch
    • 2
  • Nassir Navab
    • 1
  1. 1.Computer Aided Medical ProceduresTU MünchenGermany
  2. 2.Siemens AGHealthcare SectorForchheimGermany

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