Intraoperative registration for liver tumor ablation

Authors:
Cristina Oyarzun Laura;Klaus Drechsler;Marius Erdt;Matthias Keil;Matthias Noll;Stefano De Beni;Georgios Sakas;Luigi Solbiati
Affiliations:
Fraunhofer Institute for Computer Graphics Research IGD, Germany;Fraunhofer Institute for Computer Graphics Research IGD, Germany;Fraunhofer Institute for Computer Graphics Research IGD, Germany;Fraunhofer Institute for Computer Graphics Research IGD, Germany;Fraunhofer Institute for Computer Graphics Research IGD, Germany;Esaote Spa, Italy;Fraunhofer Institute for Computer Graphics Research IGD, Germany and Technische Universitaet Darmstadt, Germany;General Hospital of Busto Arsizio, Italy
Venue:
MICCAI'11 Proceedings of the Third international conference on Abdominal Imaging: computational and Clinical Applications
Year:
2011

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Abstract

Computer aided navigation augments intraoperatively gathered U/S with planning information that the doctor carries out before the intervention on a CT volume. A crucial step for the navigation is the registration between CT and U/S. Our approach consists on a landmark based registration. The correspondences between both modalities are found automatically using a graph to graph matching algorithm. Therefore, liver and vessels are previously segmented. The whole process has being tested on 15 pairs of real clinical data. The results are promising.