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Evolution of contemporary instrumentation for computer-assisted stereotactic surgery
P J Kelly1, S J Goerss, B A Kall
1Department of Neurosurgery, Mayo Clinic, Rochester, Minnesota 55905.
Surgical Neurology
|September 1, 1988
Summary
This study details the iterative development of a stereotactic system, enhancing its compatibility with advanced imaging technologies like MRI and CT scans for neurosurgery.
Area of Science:
- Neurosurgery
- Medical Device Engineering
Background:
- The Todd-Wells stereotactic instrument was initially designed for radiographic functional neurosurgery.
- Early modifications adapted the system for computed tomography (CT) and later for magnetic resonance imaging (MRI) and digital angiography.
Purpose of the Study:
- To describe the evolution of a stereotactic system from the Todd-Wells instrument.
- To address design limitations and incorporate requirements for tumor stereotaxis and advanced imaging compatibility.
Main Methods:
- Iterative redesign of the stereotactic system based on the arc-quadrant principle.
- Integration of localization systems for CT, MRI, and digital angiography.
- Development of a fully interactive operating room computer system interface.
Main Results:
- The stereotactic system evolved from a basic radiographic instrument to one compatible with multiple advanced imaging modalities.
- Redesign addressed limitations, enabling improved tumor stereotaxis.
- The current system is fully interactive with operating room computer systems.
Conclusions:
- The developed stereotactic system represents a significant advancement over the original Todd-Wells instrument.
- Continuous refinement has resulted in a versatile and integrated neurosurgical tool.