A method for an automatic reliable and precise detection of anatomical landmarks based on triangulated surface models of bone structures is presented. By means of a surface-based registration procedure manually specified landmarks on the atlas surface are transferred automatically to the patient's surface. In a preprocessing step, initial landmark positions on the patient's surface are automatically determined to restrict the registration to a surface area. During the registration process apart from the Euclidean distances of the surface points the surface-normals and a new local curvature measure for triangulated surfaces are used. Finally an evaluation of the proposed method is presented.
Selected Publications:
Jan Ehrhardt: Atlasbasierte Erkennung anatomischer Strukturen und Landmarken für die dreidimensionale virtuelle Planung von Hüftoperationen. Books on Demand, Norderstedt, 2005.
Jan Ehrhardt, Heinz Handels, Werner Plötz, Siegfried J. Pöppl: Atlas-based recognition of anatomical structures and landmarks and the automatic computation of orthopedic parameters to support the virtual planning of hip operations. Meth. Inform. Med.43 (2004), 391-397.
Ehrhardt J, Handels H, Pöppl SJ: Atlas-based Determination of Anatomical Landmarks to Support the Virtual Planning of Hip Operations. In: Lemke HU, Vannier MW, Inamura K, Farman AG, Doi K, Reiber JHC, Computer Assisted Radiology and Surgery, CARS 2003, London, Elsevier, 99-104.
