Integration of stereotactic ultrasonic data into an interactive image-guided neurosurgical system

Daniel Walsh Shima; Robert L. Galloway Jr.

doi:10.1117/12.312527

26 June 1998 Integration of stereotactic ultrasonic data into an interactive image-guided neurosurgical system

Daniel Walsh Shima, Robert L. Galloway Jr.

Proceedings Volume 3335, Medical Imaging 1998: Image Display; (1998) https://doi.org/10.1117/12.312527
Event: Medical Imaging '98, 1998, San Diego, CA, United States

Abstract

Stereotactic ultrasound can be incorporated into an interactive, image-guide neurosurgical system by using an optical position sensor to define the location of an intraoperative scanner in physical space. A C-program has been developed that communicates with the Optotrak^TM system developed by Northern Digital Inc. to optically track the three-dimensional position and orientation of a fan-shaped area defined with respect to a hand-held probe. (i.e., a virtual B-mode ultrasound fan beam) Volumes of CT and MR head scans from the same patient are registered to a location in physical space using a point-based technique. The coordinates of the virtual fan beam in physical space are continuously calculated and updated on-the-fly. During each program loop, the CT and MR data volumes are reformatted along the same plane and displayed as two fan-shaped images that correspond to the current physical-space location of the virtual fan beam. When the reformatted preoperative tomographic images are eventually paired with a real-time intraoperative ultrasound image, a neurosurgeon will be able to use the unique information of each imaging modality (e.g., the high resolution and tissue contrast of CT and MR and the real-time functionality of ultrasound) in a complementary manner to identify structures in the brain more easily and to guide surgical procedures more effectively.

Citation Download Citation

Daniel Walsh Shima and Robert L. Galloway Jr. "Integration of stereotactic ultrasonic data into an interactive image-guided neurosurgical system", Proc. SPIE 3335, Medical Imaging 1998: Image Display, (26 June 1998); https://doi.org/10.1117/12.312527

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KEYWORDS

Fluctuations and noise

Ultrasonography

Colon

Tomography

Computed tomography

Magnetic resonance imaging

Brain

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