@misc{EhlkeRammLameckeretal.2013, author = {Ehlke, Moritz and Ramm, Heiko and Lamecker, Hans and Hege, Hans-Christian and Zachow, Stefan}, title = {Fast Generation of Virtual X-ray Images from Deformable Tetrahedral Meshes}, issn = {1438-0064}, url = {http://nbn-resolving.de/urn:nbn:de:0297-zib-41896}, year = {2013}, abstract = {We propose a novel GPU-based approach to render virtual X-ray projections of deformable tetrahedral meshes. These meshes represent the shape and the internal density distribution of a particular anatomical structure and are derived from statistical shape and intensity models (SSIMs). We apply our method to improve the geometric reconstruction of 3D anatomy (e.g.\ pelvic bone) from 2D X-ray images. For that purpose, shape and density of a tetrahedral mesh are varied and virtual X-ray projections are generated within an optimization process until the similarity between the computed virtual X-ray and the respective anatomy depicted in a given clinical X-ray is maximized. The OpenGL implementation presented in this work deforms and projects tetrahedral meshes of high resolution (200.000+ tetrahedra) at interactive rates. It generates virtual X-rays that accurately depict the density distribution of an anatomy of interest. Compared to existing methods that accumulate X-ray attenuation in deformable meshes, our novel approach significantly boosts the deformation/projection performance. The proposed projection algorithm scales better with respect to mesh resolution and complexity of the density distribution, and the combined deformation and projection on the GPU scales better with respect to the number of deformation parameters. The gain in performance allows for a larger number of cycles in the optimization process. Consequently, it reduces the risk of being stuck in a local optimum. We believe that our approach contributes in orthopedic surgery, where 3D anatomy information needs to be extracted from 2D X-rays to support surgeons in better planning joint replacements.}, language = {en} } @article{DeuflhardWeiserSeebass2000, author = {Deuflhard, Peter and Weiser, Martin and Seebaß, Martin}, title = {A New Nonlinear Elliptic Multilevel FEM Applied to Regional Hyperthermia}, volume = {3}, journal = {Comput. Visual. Sci.}, doi = {10.1007/PL00013546}, pages = {1 -- 6}, year = {2000}, language = {en} } @inproceedings{Hege2003, author = {Hege, Hans-Christian}, title = {Creation and Visualization of Anatomical Models with Amira}, booktitle = {Proc. of 3D Modelling 2003}, address = {Paris}, pages = {7pp.}, year = {2003}, language = {en} } @article{VDoerffelSuganoStallingetal.2003, author = {V. D{\"o}rffel, W. and Sugano, Yoshimi and Stalling, Detlev and Coconu, Liviu}, title = {Lasergest{\"u}tzte endoskopische Vermessung der großen Atemwege}, volume = {57(3)}, journal = {Pneumonologie}, doi = {10.1055/s-2003-42220}, pages = {503 -- 509}, year = {2003}, language = {en} } @inproceedings{HegeSchirmacherWesterhoffetal.2002, author = {Hege, Hans-Christian and Schirmacher, Hartmut and Westerhoff, Malte and Lamecker, Hans and Prohaska, Steffen and Zachow, Stefan}, title = {From Image Data to Three-Dimensional Models - Case Studies on the Impact of 3D Patient Models}, booktitle = {Proceedings of the Japan Korea Computer Graphics Conference 2002}, publisher = {Kanazawa University}, address = {Kanazawa City, Ishikawa, Japan}, year = {2002}, language = {en} } @article{BengerBartschHegeetal.2006, author = {Benger, Werner and Bartsch, Hauke and Hege, Hans-Christian and Kitzler, Hagen and Shumilina, Anna and Werner, Annett}, title = {Visualizing neuronal structures in the human brain via Diffusion Tensor MRI}, volume = {116(4)}, journal = {Int. Journal of Neuroscience}, pages = {461 -- 514}, year = {2006}, language = {en} } @inproceedings{ZeilhoferSaderApostolescuetal.2000, author = {Zeilhofer, Hans-Florian and Sader, Robert and Apostolescu, Victor and Hoffmann, Karl-Heinz and G{\"o}bel, Martin and Hege, Hans-Christian}, title = {Die Bedeutung breitbandiger und leistungsf{\"a}higer Kommunikationsinfrastrukturen f{\"u}r die kraniomaxillofaziale Chirurgie - M{\"o}glichkeiten der netzbasierten Bildverarbeitung}, booktitle = {Bildverarbeitung f{\"u}r die Medizin 2000 (Abstract)}, address = {M{\"u}nchen}, year = {2000}, language = {en} } @inproceedings{WegnerStallingHegeetal.1997, author = {Wegner, Susan and Stalling, Detlev and Hege, Hans-Christian and Oswald, H. and Fleck, E.}, title = {Die 3D-Wasserscheidentransformation auf Graphenebene - eine Anwendung f{\"u}r die Hyperthermieplannung}, booktitle = {Digitale Bildverarbeitung in der Medizin, Tagungsband zum 5. Freiburger Workshop}, editor = {Arnolds, B. and M{\"u}ller, H. and Saupe, D. and Tolxdorff, Thomas}, address = {Freiburg}, pages = {31 -- 36}, year = {1997}, language = {en} } @inproceedings{SeebassStallingZoeckleretal.1997, author = {Seebaß, Martin and Stalling, Detlev and Z{\"o}ckler, Malte and Hege, Hans-Christian and Wust, Peter and Felix, Roland and Deuflhard, Peter}, title = {Surface Mesh Generation for Numerical Simulations of Hyperthermia Treatments}, booktitle = {Proceedings of the 16th Annual Meeting of the European Society for Hyperthermic Oncology (ESHO-97)}, pages = {146}, year = {1997}, language = {en} } @inproceedings{DeuflhardSeebassStallingetal.1997, author = {Deuflhard, Peter and Seebaß, Martin and Stalling, Detlev and Beck, Rudolf and Hege, Hans-Christian}, title = {Hyperthermia Treatment Planning in Clinical Therapy}, booktitle = {Computational Physics, Chemistry and Biology (Proceedings of the 15th IMACS World Congress 1997 on Scientific Computation 3, Modelling and Applied Mathematics)}, editor = {Sydow, Achim}, publisher = {Wissenschaft und Technik Verlag}, pages = {9 -- 17}, year = {1997}, language = {en} }