1. Tracked Bipolar Stimulator
Greg Wempe
Advised by:
Dr. Robert L. Galloway, Ph.D.
Mr. Steven L. Hartmann
Secondary Presentation February 7, 2001

2. Project Definition Design a sheath and carriage system that will
integrate into the present software package
and allow for the tracking and marking of
desired points. Additional software coding
may be required for proper incorporation.

3. Presentation Format Project Background Current Status Key Questions
Future Plans

4. Presentation Format Project Background Current Status Key Questions
Future Plans

5. Project Background
Mapping of surface points on the brain is necessary in most surgical cases
Current methodology limited to “Post-It” notes or other form of manual surface marking
Limited accuracy
Surface marking techniques are currently available and readily applicable

6. Presentation Format Project Background Current Status Key Questions
Future Plans

7. Current Status Stimulator lead sheath is complete.
Initial rigid-body file (calibration) has been compiled.
Stimulator carriage connection to IRED probe is being machined.
Power source connectors must be converted for use on updated source.

8. Presentation Format Project Background Current Status Key Questions
Future Plans

9. The Optotrak 3220 Localizing Planes
Key Questions
Device linearity and effects on roll
Currently encountering roll black-out
Testing processes
Accuracy determination
The Optotrak 3220 Localizing Planes

10. Presentation Format Project Background Current Status Key Questions
Future Plans

11. Future Plans Possible integration of new registration software
Registration development with particular emphasis on roll analysis
Possible incorporation of labeling algorithm into registration
Testing

12. Future Plans