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Nicolas Padoy |
Nassir Navab |
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Worklow Analysis Using 4D Reconstruction DataThis project targets the worklow analysis of an interventional room equipped with 16 cameras fixed on the ceiling. It uses real-time 3D reconstruction data and information from other available sensors to recognize objects, persons and actions. This provides complementary information to specific procedure analysis for the development of intelligent and context-aware support systems in surgical environments. |
Discovery and Detection of Surgical Activity in Percutaneous VertebroplastiesIn this project, we aim at discovering automatically the workflow of percutaneous vertebroplasty. The medical framework is quite different from a parallel project , where we analyze laparoscopic surgeries. Contrary to cholecystectomies where much information is provided by the surgical tools and by the endoscopic video, in vertebroplasties and kyphoplasties, we believe that the body and hand movement of the surgeon give a key insight into the surgical activity. Surgical movements like hammering of the trocar into the vertebra or the stirring of cement compounds are indicative of the current workflow phase. The objectives of this project are to acquire the workflow related signals using accelerometers, processing the raw signals and detecting recurrent patterns in order to objectively identify the low-level and high-level workflow of the procedure. |
Surgical Workflow Analysis in Laparoscopy for Monitoring and DocumentationSurgical workflow recovery is a crucial step towards the development of intelligent support systems in surgical environments. The objective of the project is to create a system which is able to recognize automatically the current steps of a surgical laparoscopic procedure using a set of signals recorded from the OR. The project adresses several issues such as the simultaneous recordings of various signals within the OR, the design of methods and algorithms for processing and interpreting the information, and finally the development of a convenient user interface to display context sensitive information inside the OR. The current clinical focus is on laparoscopic cholecystectomies but the concepts developed in the project also apply to laparoscopic surgeries of other kinds. |
Analysis and Modeling of Actions for Advanced Medical Training SystemsProviding feedback to trainees is one of the most important issues to support learning. This project researches how to give quantitative and visual feedback on the performance of a student when training on simulators or phantoms. Statistical analysis and probabilistic models are used to compare the performance of students and experts. Augmented Reality and video is used to give visual feedback like a synchronized replay of the student’s and the expert’s performance. |
| 2008 | |
| T. Blum, N. Padoy, H. Feußner, N. Navab
Workflow Mining for Visualization and Analysis of Surgeries International Journal of Computer Assisted Radiology and Surgery, Volume 3, Number 5, November 2008, pp. 379-386 (bib) |
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| A. Ahmadi, N. Padoy, S.M. Heining, H. Feußner, M. Daumer, N. Navab
Introducing Wearable Accelerometers in the Surgery Room for Activity Detection 7. Jahrestagung der Deutschen Gesellschaft f{\"u}r Computer-und Roboter-Assistierte Chirurgie (CURAC 2008) (bib) |
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| T. Blum, N. Padoy, H. Feußner, N. Navab
Modeling and Online Recognition of Surgical Phases using Hidden Markov Models Medical Image Computing and Computer-Assisted Intervention (MICCAI 2008), New York, USA, September 2008, pp. 627-635 (bib) |
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| N. Padoy, T. Blum, H. Feußner, M.O. Berger, N. Navab
On-line Recognition of Surgical Activity for Monitoring in the Operating Room Proceedings of the 20th Conference on Innovative Applications of Artificial Intelligence (IAAI 2008) held in conjunction with the 23rd AAAI Conference on Artificial Intelligence, Chicago, Illinois, USA, July 2008, pp. 1718-1724 (bib) |
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| U.F. Klank, N. Padoy, H. Feußner, N. Navab
An Automatic Approach for Feature Generation in Endoscopic Images Proceedings of Computer Assisted Radiology and Surgery (CARS 2008), 22nd International Congress and Exhibition, Barcelona, Spain, June 2008 (bib) |
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| T. Blum, N. Padoy, H. Feußner, N. Navab
Workflow Mining for Visualization and Analysis of Surgeries Proceedings of Computer Assisted Radiology and Surgery (CARS 2008), Barcelona, Spain, June 2008, pp. 134-135 (bib) |
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| 2007 | |
| N. Padoy, T. Blum, I. Essa, H. Feußner, M.O. Berger, N. Navab
A Boosted Segmentation Method for Surgical Workflow Analysis Proceedings of Medical Image Computing and Computer-Assisted Intervention (MICCAI 2007), Brisbane, Australia, October 2007, pp. 102-109 (bib) |
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| N. Navab, J. Traub, T. Sielhorst, M. Feuerstein, C. Bichlmeier
Action- and Workflow-Driven Augmented Reality for Computer-Aided Medical Procedures IEEE Computer Graphics and Applications, vol. 27, no. 5, pp. 10-14, Sept/Oct, 2007 (bib) |
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| N. Padoy, M. Horn, H. Feußner, M.O. Berger, N. Navab
Recovery of Surgical Workflow: a Model-based Approach Proceedings of Computer Assisted Radiology and Surgery (CARS 2007), 21st International Congress and Exhibition, Berlin, Germany, June 2007 (bib) |
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| T. Sielhorst, R. Stauder, M. Horn, T. Mussack, A. Schneider, H. Feußner, N. Navab
Simultaneous replay of automatically synchronized videos of surgeries for feedback and visual assessment Journal of Computer Assisted Radiology and Surgery (CARS 2007), 21st International Congress and Exhibition, Berlin, Germany, Volume 2, Supplement 1, pp. 433-434 (bib) |
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| T. Blum, T. Sielhorst, N. Navab
Advanced Augmented Reality Feedback for Teaching 3D Tool Manipulation New Technology Frontiers in Minimally Invasive Therapies, 2007, pp. 223-236 (bib) |
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| 2006 | |
| A. Ahmadi, T. Sielhorst, R. Stauder, M. Horn, H. Feußner, N. Navab
Recovery of surgical workflow without explicit models Proceedings of Medical Image Computing and Computer-Assisted Intervention (MICCAI 2006), Copenhagen, Denmark, October 2006, pp. 420-428 (bib) |
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| 2005 | |
| T. Sielhorst, T. Blum, N. Navab
Synchronizing 3D movements for quantitative comparison and simultaneous visualization of actions Fourth IEEE and ACM International Symposium on Mixed and Augmented Reality (ISMAR 2005), Vienna, Austria, October 2005, pp. 38-47 (bib) |
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