Navigated Bronchoscopy Project duration: 2007/01/01 - 2007/12/31 Sponsored partially by: Siemens In medical collaboration with: PD Dr. Hubert Hautmann (Pneumology Department Klinikum rechts der Isar) Contact Person: Joerg Traub

Keywords: Registration / Visualization, Computer-Aided Surgery

Abstract

A common task during broncoscopy procedures is to biopsy peripheral lung tumors. The video bronchoscope is not capable to reach the peripheral lung nodes, but only the biopsy needle. Thus there is no video feedback, but only feedback of the current location of the biopsy tool by fluoroscopy imaging during the intervention. This exposes patient and surgical staff to additional radiation. Another drawback is that tumors can not be visualized on the fluoroscope images and they are only a projection, thus do not report the three dimensional position of the biopsy tool. Electromagnetic tracking is capable of tracking the tip of flexible instrument. A field generator with three orthogonal coils introduces current and thus generates a magnetic field. A sensor composed also of three orthogonal coils is capable to estimate its position and orientation with respect to a coordinate system defined by the field generator. Currently we investigate the combination of all available information for navigation and solutions to represent it in one unified user interface. This includes the measurements of the electromagnetic tracking system, the c-arm, techniques of virtual bronchoscopy, and other data. Furthermore, clinical evaluation is conducted. We define the clinical endpoint and show through studies that the procedure will benefit from the usage of the navigation system.

Publications

2007
	T. Klein, J. Traub, H. Hautmann, A. Ahmadian, N. Navab Fiducial-Free Registration Procedure for Navigated Bronchoscopy Proceedings of Medical Image Computing and Computer-Assisted Intervention (MICCAI 2007), Brisbane, Australia, October/November 2007.
	J. Traub, S. Kaur, P. Kneschaurek, N. Navab Evaluation of Electromagnetic Error Correction Methods Proceedings of Bildverarbeitung fuer die Medizin (BVM 2007), Munich, Germany, March 2007, pp. 363-367 (bib)
2006
	J. Traub, J. Much, A. Schneider, F. Peltz, H. Hautmann, N. Navab User interface for electromagnetic navigated bronchoscopy 5. Jahrestagung der Deutschen Gesellschaft für Computer-und Roboter-Assistierte Chirurgie (CURAC 2006), Hannover, Germany, September 2006 (bib)

Team

Contact Person

Joerg Traub

Working Group

Hubert Hautmann

Joerg Traub

Julian Much

Nassir Navab

Tassilo Klein

Tobias Reichl

Alumni

Armin Schneider

Location

Klinikum rechts der Isar der Technischen Universitüt München Ismaninger Str. 22 81675 München IFL Lab - Room: 01.3a-c Tel.: +49 89 4140-6457 Fax: +49 89 4140-6458

Visit our lab at Klinikum rechts der Isar.



internal project page

Please contact Joerg Traub for available student projects within this research project.