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Proceedings Paper

Augmented-reality-guided biopsy of a tumor near the skull base: the surgeon's experience
Author(s): Georg Eggers; Gunther Sudra; Sassan Ghanai; Tobias Salb; Ruediger Dillmann; Ruediger Marmulla; Stefan Hassfeld
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Paper Abstract

INPRES, a system for Augmented Reality has been developed in the collaborative research center "Information Technology in Medicine - Computer- and Sensor-Aided Surgery". The system is based on see-through glasses. In extensive preclinical testing the system has proven its functionality and tests with volunteers had been performed successfully, based on MRI imaging. We report the surgeons view of the first use of the system for AR guided biopsy of a tumour near the skull base. Preoperative planning was performed based on CT image data. The information to be projected was the tumour volume and was segmented from image data. With the use of infrared cameras, the positions of patient and surgeon were tracked intraoperatively and the information on the glasses displays was updated accordingly. The systems proved its functionality under OR conditions in patient care: Augmented reality information could be visualized with sufficient accuracy for the surgical task. After intraoperative calibration by the surgeon, the biopsy was acquired successfully. The advantage of see through glasses is their flexibility. A virtual stereoscopic image can be set up wherever and whenever desired. A biopsy at a delicate location could be performed without the need for wide exposure. This means additional safety and lower operation related morbidity to the patient. The integration of the calibration-procedure of the glasses into the intraoperative workflow is of importance to the surgeon.

Paper Details

Date Published: 12 April 2005
PDF: 7 pages
Proc. SPIE 5744, Medical Imaging 2005: Visualization, Image-Guided Procedures, and Display, (12 April 2005); doi: 10.1117/12.594542
Show Author Affiliations
Georg Eggers, Univ. of Heidelberg (Germany)
Gunther Sudra, IRF Univ. of Karlsruhe (Germany)
Sassan Ghanai, Univ. of Heidelberg (Germany)
Tobias Salb, IRF Univ. of Karlsruhe (Germany)
Ruediger Dillmann, IRF Univ. of Karlsruhe (Germany)
Ruediger Marmulla, Univ. of Heidelberg (Germany)
Stefan Hassfeld, Univ. of Heidelberg (Germany)


Published in SPIE Proceedings Vol. 5744:
Medical Imaging 2005: Visualization, Image-Guided Procedures, and Display
Robert L. Galloway; Kevin R. Cleary, Editor(s)

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