1. Computational Planning in Facial Surgery.
   invited talk: Conference on 3D Printing & Bio-printing in Healthcare,
   Düsseldorf, Germany (12.10.2017)
2. Digitale Patientenmodelle für Therapieplanung, Ausbildung, Patientenaufklärung und Dokumentation.
   eingeladener Vortrag: Technik zum Menschen bringen, 3. Zukunftskongress zur Mensch-Technik-Interaktion,
   World Conference Center Bonn (WCCB), Deutschland (26.06.2017)
3. Geometric Modeling - Towards automated heart segmentation.
   invited talk: Workshop on Visualization and Uncertainty in Patient-Specif Whole-Heart Modelling,
   Berlin, Germany (29.05.2017)
4. Computational Anatomy - Anwendungen in der biomechanischen Forschung und der Unfallchirurgie.
   eingeladener Vortrag: Workshop Wissenschaft trifft Industrie,
   Julius Wolff Institut, Charité Berlin, Deutschland (26.11.2015)
5. 3D Assessment of Osteosynthesis based on 2D Radiographs
   14th annual Meeting of the German Society for computer- and robot-assited surgery (CURAC),
   Bremen, Germany (19.09.2015)
6. Craniosynostosis - Closing the Loop - Images and Quantification.
   invited talk: 41st annual meeting of the International Society for Pediatric Neurosurgery (ISPN), Pre-Meeting on Craniosynostosis,
   Mainz, Germany (29.09.2013)
7. Computer- und modellgestützte Therapieplanung in der Medizin am Zuse-Institut Berlin (ZIB).
   eingeladener Vortrag: 1. Workshop zu "3D Biomechanik & Computermodellierung für die medizinische Operationsplanung"
   Institut für Medizintechnik und Informationsverarbeitung, Koblenz, Germany (30.01.2013)
8. Three-dimensional morphometry - Building an objective for surgical reconstruction of cranial deformities.
   invited talk: 1st Annual Conference of ZfL, "Culture Meets Surgery - Images, Models, and Interpretations of the Human Skull",
   Berlin, Germany (09.11.2012)
9. Fast Computation of Virtual Radiographs for 3D Surgery Planning based on X-Ray.
   12th Annual meeting of the Int. Society for Computer Assisted Orthopaedic Surgery (CAOS),
   Seoul, South Korea (15.06.2012)
10. Facial Surgery Planning: An Engineer's View.
    invited talk: 2nd Int. Symposium on New Technologies for Diagnosis, Planning & Treatments in Maxillofacial Surgery (3DBO),
    Bologna, Italy (31.03.2012)
11. Facial Surgery Planning.
    13th Winter Meeting of the European Academy of Facial Plastic Surgery (EAFPS),
    Galtür, Austria (13.03.2012)
12. Modellbasierte Segmentierung und Simulation.
    eingeladener Vortrag: Rundgespräch der Deutschen Forschungsgemeinschaft (DFG), im Rahmen der MEDICA 2010,
    Düsseldorf, Germany (19.11.2010)
13. Modellgestützte chirurgische Rekonstruktion komplexer Mittelgesichtsfrakturen.
    DGBMT Tagung der Deutschen Gesellschaft für Biomedizinische Technik, BMT 2010,
    Rostock, Germany (07.09.2010)
14. 3D reconstruction of Individual Anatomy from Medical Image Data.
    EU FP6 DeSSOS Symposium: "Patient-Centred Orthopaedic Surgery, Challenges, Emerging Technologies and Future Concepts",
    Southampton, UK (28.11.2009)
15. Visual Analysis of Nasal Airflow.
    IEEE Visualization Conference (VisWeek 2009),
    Atlantic City, NJ, USA (15.10.2009)
16. Computer-assisted, Model-guided Reconstruction of Facial Trauma.
    12th Winter Meeting of the European Academy of Facial Plastic Surgery (EAFPS),
    Flims-Laax, Switzerland (11.03.2009)
17. Analysis of Mandibular Shape Variability: A Statistical 3D Shape Model.
    12th Winter Meeting of the European Academy of Facial Plastic Surgery (EAFPS),
    Flims-Laax, Switzerland (11.03.2009)
18. Computer-assisted, Model-based Therapy Planning in Medicine.
    invited tutorial: on "Advanced Visual Medicine: Techniques for Visual Exploration & Analysis",
    IEEE Visualization Conference (IEEE VisWeek 2008),
    Columbus, OH, USA (21.10.2008)
19. 3D model based planning in surgery of the head.
    invited talk: 4th Bernd-Spiessl-Symposium for Innovative and Visionary Technologies in Cranio-Maxillofacial Surgery,
    Basel, Switzerland (06.06.2008)
20. Modellierung der Ossikelkette und Simulation der Schwingungsübertragung im Mittelohr.
    1st Leipzig ENT-Training Course in Surgical Cockpit Technologies: "Surgery of the Middle Ear, FESS and Frontal Skull Base",
    Satellite Workshop of Computer Aided Surgery around the Head (CAS-H),
    Leipzig, Germany (06.02.2008)
21. 3D Reconstruction of Individual Anatomy from Medical Image Data: Segmentation and Geometry Processing.
    25th ANSYS Conference & CADFEM Users' Meeting 2007,
    Dresden, Germany (22.11.2007)
22. Simulation and Visualization for Surgery Planning.
    invited tutorial: on "Advanced Visual Medicine: Techniques, Applications and Software",
    IEEE Visualization Conference (IEEE VisWeek 2007),
    Sacramento, CA, USA (29.10.2007)
23. Modellgestützte Therapien in der Medizin mit adaptiven Assistenzsystemen.
    1st CURAC/CARS MGT & AAS Workshop,
    Karlsruhe, Germany (12.10.2007)
24. Analysis of Nasal Airflow Phenomena using CFD Simulations.
    6th Int. Congress on Industrial and Applied Mathematics (ICIAM),
    Zurich, Switzerland (17.06.2007)
25. Computer Assisted Treatment Planning in Head Surgery.
    11th Winter Meeting of the European Academy of Facial Plastic Surgery (EAFPS),
    Flims-Laax, Switzerland (15.03.2007)
26. Understanding nasal airflow via CFD simulation and visualization.
    4th Int. Conference on Computer Aided Surgery around the Head (CAS-H),
    Innsbruck, Austria (22.02.2007)
27. Therapy Planning in Head Surgery.
    invited talk: Polish-German Workshop on Modeling in Life Sciences,
    Interdisciplinary Centre for Mathematical and Computational Modelling,
    Warschau, Poland (30.01.2007)
28. Statistical 3D-Shape Analysis and Applications in Medicine.
    invited talk: Aschauer Soirée der Deutschen Gesellschaft für Auxologie,
    Workshop on "Long term diet and nutritional adaptation",
    Altenhof, Germany (04.11.2006)
29. Die Bedeutung der Qualität von 3D-Geometrie, Rechengitter und Visualisierung für die Aussagekraft der numerischen Simulation der Strömung durch die Nase.
    16. Jahrestreffen der Arbeitsgemeinschaft Klinische Immunologie, Allergologie und Umweltmedizin
    der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie,
    AG Respiratorische Funktion der Nase an der Charité, Campus Virchow Klinikum,
    Berlin, Germany (14.10.2006)
30. CFD Simulation of nasal airflow: Towards treatment planning for functional rhinosurgery.
    20th Int. Congress on Computer Assisted Radiology and Surgery (CARS),
    Osaka, Japan (29.06.2006)
31. Is the course of the mandibular nerve deducible from the shape of the mandible?
    20th Int. Congress on Computer Assisted Radiology and Surgery (CARS),
    Osaka, Japan (30.06.2006)
32. Maxillofacial Surgery Planning with 3D Soft Tissue Prediction - Modeling, Planning, Simulation.
    2nd Int. Conf. on Advanced Digital Technology in Head and Neck Reconstruction,
    Banff, Alberta, Canada (11.03.2005)
33. Reconstruction of Mandibular Dysplasia using a Statistical 3D Shape Model.
    19th Int. Congress on Computer Assisted Radiology and Surgery (CARS),
    Berlin, Germany (24.06.2005)
34. Die Mimik in der Virtuellen Realität - Mund-Kiefer-Gesichtschirurgie der anderen Art
    invited talk: 1st Bernd-Spiessl-Symposium für innovative und visionäre Technologien,
    Basel, Switzerland (17.06.2005)
35. Computergestützte Operationsplanung in der Gesichtschirurgie.
    VDE Kongress 2004 - Innovationen für Menschen,
    Berlin, Germany (19.10.2004)
36. Quantitative Bewertung der Simulationsgüte einer 3D Weichgewebeprädiktion für die Operationsplanung in der Gesichtschirurgie.
    3. Jahrestagung der Deutschen Gesellschaft für Computer- und Roboter-assistierte Chirurgie e.V.,
    München, Germany (09.10.2004)
37. Advances in 3D osteotomy planning with soft tissue prediction.
    2nd International Symposium on Computer Aided Surgery around the Head,
    Bern, Switzerland (18.09.2004)
38. Predictability of tissue changes after osteotomy planning in maxillofacial surgery: A comparison with postoperative results.
    18th Int. Congress on Computer Assisted Radiology and Surgery (CARS),
    Chicago, IL, USA (25.06.2004)
39. Über die Genauigkeit einer 3D Weichgewebeprädiktion in der MKG-Chirurgie: Ein quantitativer Vergleich mit postoperativen CT-Daten.
    Workshop Bildverarbeitung für die Medizin 2004 (BVM),
    Berlin, Germany (30.03.2004)
40. Draw & Cut: Intuitive 3D Osteotomy Planning on Polygonal Bone Models.
    17th Int. Congress on Computer Assisted Radiology and Surgery (CARS),
    London, UK (26.06.2003)
41. Towards Patient Specific, Anatomy Based Simulation of Facial Mimics for Surgical Nerve Rehabilitation.
    16th Int. Congress on Computer Assisted Radiology and Surgery (CARS),
    Paris, France (26.06.2002)
42. 3D Osteotomy Planning in Cranio-Maxillofacial Surgery: Experiences and Results of Surgery Planning and Volumetric Finite-Element Soft Tissue Prediction in Three Clinical Cases.
    16th Int. Congress on Computer Assisted Radiology and Surgery (CARS),
    Paris, France (28.06.2002)
43. Computer Assisted 3D Osteotomy Planning in Cranio-Maxillofacial Surgery.
    16. Treffpunkt Medizintechnik, Charité Berlin, Campus Virchow Klinikum,
    Berlin, Germany (13.06.2002)
44. Computerassistierte 3D Planung in der Mund-Kiefer-Gesichtschirurgie.
    eingeladener Vortrag: 7. Kongress der Union Schweizerischer Chirurgischer Fachgesellschaften,
    Lausanne, Switzerland (20.06.2002)
45. Chirurgieplanung mit Amira.
    Vortrag mit Software Demonstration: 119. Kongress der Deutschen Gesellschaft für Chirurgie,
    Berlin, Germany (07.05.-10.05.2002)
46. Improved 3D Osteotomy Planning in Cranio-Maxillofacial Surgery.
    Int. Conf. on Medical Image Computing and Computer-Assisted Intervention (MICCAI),
    Utrecht, The Netherlands (16.10.2001)
47. 3D Osteotomieplanung in der MKG-Chirurgie unter Berücksichtigung der räumlichen Weichgewebeanordnung.
    Tagung des SFB 414 "Rechner- und sensorgestützte Chirurgie", Informationstechnik in der Medizin
    Heidelberg, Germany (20.07.2001)
48. Computer Assisted 3D Osteotomy Planning in Cranio-Maxillofacial Surgery.
    3rd Caesarium and Int. Workshop on Deformable Modeling and Soft Tissue Simulation,
    Bonn, Germany (12.11.-15.11.2001)
49. Finite-Element Simulation of Soft Tissue Deformation.
    14th Int. Congress on Computer Assisted Radiology and Surgery (CARS), San Francisco, CA, USA (30.06.2000)
50. Optimized Arrangement of Osseointegrated Implants: A Surgical Planning System for the Fixation of Facial Prostheses.
    13th Int. Congress on Computer Assisted Radiology and Surgery (CARS),
    Paris, France (24.06.1999)