Dr. Tim Kröger Contact Dr. Tim Kröger Fraunhofer MEVIS Universitätsallee 29 28359 Bremen Germany Phone: +49-421-218-59246 Fax: +49-421-218-59277 tim.kroeger (at) cevis.uni-bremen.de tim.kroeger (at) mevis.fraunhofer.de

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Teaching in Bremen

• Winter 2010/2011
  • Lecture: Functional Analysis
• Summer 2010
  • Proseminar: Biomathematics
  • Lecture: Mathematics 4 for Industrial Engineers
• Winter 2009/2010
  • Proseminar: Coding and Compression
  • Seminar: Mathematical Physiology (with Prof. Dr. Tobias Preusser and Prof. Dr. Marc Huett)
• Summer 2009
  • Tutorial: Differential Geometry (Lecture: Prof. Dr. Michael Hortmann)
  • Tutorial: Computer Laboratory (and lecture on behalf of Dr. Hartmut Jürgens)
• Winter 2008/2009
  • Tutorial: Linear Algebra I (Lecture: Prof. Dr. Dmitry Feichtner-Kozlov)
• Summer 2008
  • Lecture: Mathematics II for Industrial Engineers
• Winter 2007/2008
  • Lecture: Mathematics I for Industrial Engineers
• Summer 2007
  • Lecture: Therapy Planning with Numerical Mathematics (with Dr. Tobias Preusser)
  • Tutorial: Partial Differential Equations I (Lecture: Dr. Michael Wolff)
• Winter 2006/2007
  • Lecture: Therapy Planning with Numerical Mathematics (with Dr. Tobias Preusser) (Cancelled)
  • Tutorial: Mathematics I for Industrial Engineers (Lecture: Dr. Roland Uhl)
  • Tutorial: Selected Applications of Mathematics (Lecture: Prof. Dr. Heinz-Otto Peitgen)
• Summer 2006
  • Seminar: Numerical Schemes for Hyperbolic Conservation Laws (Cancelled)
  • Tutorial: Numbers - Algebraic and Analytic (Lecture: Prof. Dr. Stefan Halverscheid)
• Winter 2005/2006
  • Tutorial: Mathematical Bridging Course ("Mathematisches Vorsemester") (Lecture: Prof. Dr. Heinz-Otto Peitgen)
  • Tutorials: Algebra (Lecture: Prof. Dr. Manfred Wischnewsky)

Teaching Prior to My Time in Bremen

• Summer 2003
  • Tutorial: Numerical Analysis IV (Lecture: Prof. Dr. Sebastian Noelle)
• Winter 2002/2003
  • Tutorial: Numerical Analysis III (Lecture: Prof. Dr. Sebastian Noelle)
• Summer 2002
  • Tutorial: Numerical Analysis II (Lecture: Prof. Dr. Sebastian Noelle)

Publications

If you should be interested in a copy of some of these publications, please do not hesitate to contact me.

• Tim Kröger, Sebastian Noelle, Susanne Zimmermann: On the Connection Between Some Riemann-Solver Free Approaches to the Approximation of Multi-Dimensional Systems of Hyperbolic Conservation Laws. M2AN 38, No. 6, 989-1009 (2004).
• Tim Kröger: Multidimensional Systems of Hyperbolic Conservation Laws, Numerical Schemes, and Characteristic Theory - Connections, Differences, and Numerical Comparison. Dissertation. Aachen (2004).
• Tim Kröger, Sebastian Noelle: Numerical Comparison of the Method of Transport to a Standard Scheme. Computers & Fluids 34, 541-560 (2005).
• Tim Kröger, Maria Lukacova-Medvidova: An Evolution Galerkin Scheme for the Shallow Water Magnetohydrodynamic Equations in two Space Dimensions. J. Comp. Phys. 206, 122-149 (2005).
• Tim Kröger, Sebastian Noelle: Riemann-Solver Free Schemes. In: Analysis and Numerics for Conservation Laws. Editor: Gerald Warnecke, 429-451. Springer, ISBN 3-540-24834-X (2005).
• Tim Kröger, Inga Altrogge, Tobias Preusser, Philippe L. Pereira, Diethard Schmidt, Andreas Weihusen, Heinz-Otto Peitgen: Numerical Simulation of Radio Frequency Ablation with State Dependent Material Parameters in Three Space Dimensions. Proc. MICCAI, Lect. Not. Comp. Sci. 4191, 380-388 (2006). Click here for some images and errata.
• Inga Altrogge, Tim Kröger, Tobias Preusser, Christof Büskens, Philippe L. Pereira, Diethard Schmidt, Andreas Weihusen, Heinz-Otto Peitgen: Towards Optimization of Probe Placement for Radio-Frequency Ablation. Proc. MICCAI, Lect. Not. Comp. Sci. 4190, 486-493 (2006).
• Andreas Weihusen, Felix Ritter, Tim Kröger, Tobias Preusser, Stephan Zidowitz, Heinz-Otto Peitgen: Workflow oriented software support for image guided radiofrequency ablation of focal liver malignancies. Proc. SPIE 6509, 650919-650927 (2007).
• Jan Hendrik Metzen, Tim Kröger, Andrea Schenk, Stephan Zidowitz, Xiaoyi Jiang, Heinz-Otto Peitgen: Matching von Baumstrukturen. Proc. BVM. 283 116-120 (2007).
• Jan Hendrik Metzen, Tim Kröger, Andrea Schenk, Stephan Zidowitz, Heinz-Otto Peitgen, Xiaoyi Jiang: Matching of tree structures for registration of medical images. Lect. Not. Comp. Sci. 4538, 13-24 (2007).
• Stephan Zidowitz, Johann Drexl, Tim Kröger, Tobias Preusser, Felix Ritter, Andreas Weihusen, Heinz-Otto Peitgen: Bayesian Vessel Extraction for Planning of RF-Ablation. Proc. BVM. 283 187-191 (2007).
• Tim Kröger, Tobias Preusser: Stability of the 8-Tetrahedra Shortest-Interior-Edge Partitioning Method. Numer. Math. 109, No. 3, 435-457 (2008). Click here for download and additional information.
• Inga Altrogge, Tobias Preusser, Tim Kröger, Christof Büskens, Philippe L. Pereira, Diethard Schmidt, Heinz-Otto Peitgen: Multi-Scale Optimization of the Probe Placement for Radio-Frequency Ablation. Acad. Radiol. 14, No. 11, 1310-1324 (2007). Click here for some images and errata.
• Tim Kröger, Inga Altrogge, Olaf Konrad, Robert M. Kirby, Tobias Preusser: Estimation of Probability Density Functions for Parameters Sensitivity Analyses. Proc. Sim. Vis., 61-74 (2008). Click here for additional information.
• Tim Kröger, Andreas Weihusen, Inga Altrogge, Hanne Tiesler, Christian Rieder, Andrea Schenk, Verena Knappe, Bernd Frericks, Tobias Preusser, Heinz-Otto Peitgen: Therapy Planning for Local Ablation. In: Trends in Radiofrequency Ablation. Editors: H.J. Buhr, K.J. Wolf. submitted (2008).
• Tim Kröger, Tobias Preusser: Towards a Simulation of Temperature Induced Blood Clotting in Hepatic RF Ablation. Proc. IFMBE. 25/IV, 728-731 (2009).
• Inga Altrogge, Torben Pätz, Tim Kröger, Heinz-Otto Peitgen, Tobias Preusser: Optimization & Fast Estimation of Vessel Cooling for RF Ablation. Proc. IFMBE. 25/IV, 1202-1205 (2009).
• Torben Pätz, Tim Kröger, Tobias Preusser: Simulation of Radiofrequency Ablation including Water Evaporation. Proc. IFMBE. 25/IV, 1287-1290 (2009).
• Tim Kröger, Torben Pätz, Inga Altrogge, Andrea Schenk, Kai S. Lehmann, Bernd B. Frericks, Jörg-Peter Ritz, Heinz-Otto Peitgen, Tobias Preusser: Fast Estimation of the Vascular Cooling in RFA Based on Numerical Simulation. The Open Biomed. Eng. J. 4, 16-26 (2010).
• Tim Kröger, Stephan Pannier, Michael Kaliske, Inga Altrogge, Wolfgang Graf, Tobias Preusser: Optimal Applicator Placement in Hepatic Radiofrequency Ablation on the Basis of Rare Data. Comput. Meth. Biomech. Biomed. Eng. 13, no. 3, 431-440 (2010).
• Andreas Weihusen, Lisa Hinrichsen, Thomas Carus, Rainer Dammer, Richard Rascher-Friesenhausen, Tim Kröger, Heinz-Otto Peitgen, Tobias Preusser: Towards a Verfied Model for Radiofrequency Ablations. Proc. IPCAI, Lect. Not. Comp. Sci. 6135, 179-189 (2010).
• Stephan Zidowitz, Inga Altrogge, Christian Hansen, Milo Hindennach, Tim Kröger, Darko Ojdanic, Christian Rieder, Tobias Preusser, Andrea Schenk, Andreas Weihusen, Stefan Wirtz, Guido Prause, Heinz-Otto Peitgen: Computer-Assisted Risk Prevention in Surgical and Interventional Treatment of Liver Tumors. Biomed. Tech. 55, suppl. 1, 74-77 (2010).
• Kai S. Lehmann, Bernd B. Frericks, Tim Kröger, Andrea Schenk, Verena Knappe, Christoph Holmer, Urte Zurbuchen, Heinz-Otto Peitgen, Heinz J. Buhr, Jörg-Peter Ritz: Ex-vivo Evaluation of a Simulation System for Hepatic Radiofrequency Ablations Incorporating the Heat Sink Effect of Intrahepatic Vessels. J. Amer. College Surg. submitted (2010).
• Hanne Tiesler, Inga Altrogge, Tim Kröger, Christof Bueskens, Heinz-Otto Peitgen, Tobias Preusser: Modeling, Simulation and Optimization of Radiofrequency Ablation. In: Optimization with Partial Differential Equations (International Series of Numerical Mathematics, ISNM, Birkhäuser) in print (2010).
• Christian Rieder, Inga Altrogge, Tim Kröger, Stephan Zidowitz, Tobias Preusser: Interactive Approximation of the Ablation Zone incorporating Heatsink Effects for Radiofrequency Ablation. Proc. CURAC 9-12 (2010).