An interactive 3D user interface for guided bronchoscopy

21 March 2007 An interactive 3D user interface for guided bronchoscopy

Indriyati Atmosukarto, Timothy D. Soper, Robb W. Glenny, Eric J. Seibel, Linda G. Shapiro

Author Affiliations +

Proceedings Volume 6509, Medical Imaging 2007: Visualization and Image-Guided Procedures; 65091G (2007) https://doi.org/10.1117/12.696087
Event: Medical Imaging, 2007, San Diego, CA, United States

Abstract

Recent studies have shown that more than 5 million bronchoscopy procedures are performed each year worldwide. The procedure usually involves biopsy of possible cancerous tissues from the lung. Standard bronchoscopes are too large to reach into the peripheral lung, where cancerous nodules are often found. The University of Washington has developed an ultrathin and flexible scanning fiber endoscope that is able to advance into the periphery of the human lungs without sacrificing image quality. To accompany the novel endoscope, we have developed a user interface that serves as a navigation guide for doctors when performing a bronchoscopy. The navigation system consists of a virtual surface mesh of the airways extracted from computed-tomography (CT) scan and an electromagnetic tracking system (EMTS). The complete system can be viewed as a global positioning system for the lung that provides pre-procedural planning functionalities, virtual bronchoscopy navigation, and real time tracking of the endoscope inside the lung. The real time virtual navigation is complemented by a particle filter algorithm to compensate for registration errors and outliers, and to prevent going through surfaces of the virtual lung model. The particle filter method tracks the endoscope tip based on real time tracking data and attaches the virtual endoscopic view to the skeleton that runs inside the virtual airway surface. Experiment results on a dried sheep lung show that the particle filter method converges and is able to accurately track the endoscope tip in real time when the endoscope is inserted both at slow and fast insertion speeds.

Citation Download Citation

Indriyati Atmosukarto, Timothy D. Soper, Robb W. Glenny, Eric J. Seibel, and Linda G. Shapiro "An interactive 3D user interface for guided bronchoscopy", Proc. SPIE 6509, Medical Imaging 2007: Visualization and Image-Guided Procedures, 65091G (21 March 2007); https://doi.org/10.1117/12.696087

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