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Landmark-based 3D elastic registration of pre- and postoperative liver CT data: An experimental comparison

Item Type:Article
Title:Landmark-based 3D elastic registration of pre- and postoperative liver CT data: An experimental comparison
Creators Name:Lange, T. and Woerz, S. and Rohr, K. and Schlag, P.M.
Abstract:The qualitative and quantitative comparison of pre- and postoperative image data is an important possibility to validate computer assisted surgical procedures. Due to deformations after surgery a non-rigid registration scheme is a prerequisite for a precise comparison. Interactive landmark-based schemes are a suitable approach. Incorporation of a priori knowledge about the anatomical structures to be registered may help to reduce interaction time and improve accuracy. Concerning pre- and postoperative CT data of oncological liver resections the intrahepatic vessels are suitable anatomical structures. In addition to using landmarks at vessel branchings, we here introduce quasi landmarks at vessel segments with anisotropic localization precision. An experimental comparison of interpolating thin-plate splines (TPS) and Gaussian elastic body splines (GEBS) as well as approximating GEBS on both types of landmarks is performed.
Source:Informatik aktuell
Title of Book:Bildverarbeitung für die Medizin 2009
ISSN:1431-472X
ISBN:978-3-540-93859-0
Publisher:Springer (Germany)
Page Range:107-111
Date:2009
Official Publication:https://doi.org/10.1007/978-3-540-93860-6_22

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