Abstract
After endovascular aortic aneurysm repair, stent graft migration and kinking or buckling of the stent graft can cause the perilous risk of rupture. In a previous paper we presented an approach to analyze the migration of the stent by defining the spinal canal as a reference object and by investigating the movements relative to it. In this paper, we quantify also non-rigid deformations of the stent. A procedure is used based on the segmentation and extraction of surface points for stent and spinal canal and on point set registration. The sensitivity of the quantified values with respect to the choice of segmentation parameters is investigated as well. Results for 6 patients show that the procedure allows us to distinguish benign cases from dangerous changes in morphology even if segmentation parameters vary within a reasonable bandwidth.
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© 2006 Springer-Verlag Berlin Heidelberg
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Mattes, J. et al. (2006). A Robust Semi-automatic Procedure for Motion Quantification of Aortic Stent Grafts Using Point Set Registration. In: Handels, H., Ehrhardt, J., Horsch, A., Meinzer, HP., Tolxdorff, T. (eds) Bildverarbeitung für die Medizin 2006. Informatik aktuell. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-32137-3_44
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DOI: https://doi.org/10.1007/3-540-32137-3_44
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-32136-1
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