Two motion-detection algorithms for projection-reconstruction magnetic resonance imaging: Theory and experimental verification

  • Rik Van de Walle
  • Ignace Lemahieu
  • Eric Achten
Session 11: Biomedical Applications
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1311)


In this paper, projection-reconstruction (PR) magnetic resonance (MR) imaging is considered. We present two new quantitative techniques that allow to check when motion was present during a PR MR experiment. No a priori information about the motion is required since only the measured MR signals are used in the calculations. Moreover, the proposed methods can be implemented on a standard personal computer or workstation. It is experimentally shown that both methods are able to detect motion intervals with an accuracy of one repetition time.


Transverse Magnetization Projection Angle Motion Sensitivity Standard Personal Computer Motion Interval 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1997

Authors and Affiliations

  • Rik Van de Walle
    • 1
    • 2
  • Ignace Lemahieu
    • 1
  • Eric Achten
    • 2
  1. 1.Department of Electronics and Information SystemsUniversity of GhentGhentBelgium
  2. 2.Department of Magnetic ResonanceGhent University HospitalGhentBelgium

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