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Cervical Vertebrae Tracking in Video-Fluoroscopy Using the Normalized Gradient Field

  • Rianne Reinartz
  • Bram Platel
  • Toon Boselie
  • Henk van Mameren
  • Henk van Santbrink
  • Bart ter Haar Romeny
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5761)

Abstract

For patients with neck problems valuable functional and diagnostic information can be obtained from a fluoroscopy video of a flexion-extension movement of the cervical spine. In most cases physicians have to manually extract the vertebrae, making the analysis of these video sequences tedious and time consuming. In this paper we propose an automatic fast and precise method for tracking cervical vertebrae. Our method relies only on a rough selection of template areas of each vertebra in a single frame of the video sequence. Compared to existing automated methods, no contours need to be extracted and no vertebra segmentation is required. Tracking is done with a normalized gradient field, using only the gradient orientations as features. Experimental results show that the algorithm is robust and able to track the vertebrae accurately even if they are partially occluded or if a disc prosthesis is present.

Keywords

Cervical Spine Video Sequence Cervical Vertebra Consecutive Frame Gradient Orientation 
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

Supplementary material (4,350 KB)

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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Rianne Reinartz
    • 1
  • Bram Platel
    • 2
  • Toon Boselie
    • 3
  • Henk van Mameren
    • 4
  • Henk van Santbrink
    • 3
  • Bart ter Haar Romeny
    • 1
  1. 1.Dept. of Biomed. Eng.Eindhoven University of TechnologyThe Netherlands
  2. 2.Dept. of Biomed. Eng.Maastricht University Medical CentreThe Netherlands
  3. 3.Dept. of NeurosurgeryMaastricht University Medical CentreThe Netherlands
  4. 4.Dept. of EpidemiologyMaastricht University Medical CentreThe Netherlands

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