Related Experiment Videos
Frameless stereotactic guided neurosurgery: clinical experience with an infrared based pointer device navigation
K Roessler1, K Ungersboeck, W Dietrich
1Department of Neurosurgery, University of Vienna Medical School, Austria.
Acta Neurochirurgica
|January 1, 1997
Summary
This study evaluated the Easy Guide Neuro frameless stereotactic navigation device for brain and spine surgery. While accurate for brain procedures, its spinal surgery application accuracy was limited by registration issues.
Area of Science:
- Neurosurgery
- Medical Devices
- Surgical Navigation
Background:
- Frameless stereotactic navigation systems offer potential advantages over traditional methods.
- Accurate intraoperative guidance is crucial for improving surgical outcomes.
Purpose of the Study:
- To assess the clinical applicability, accuracy, and limitations of the infrared-based Easy Guide Neuro frameless stereotactic navigation device.
- To evaluate its performance in standard operating room conditions for both cranial and spinal procedures.
Main Methods:
- A prospective study involving 40 patients undergoing 36 craniotomies and 4 spinal surgeries.
- Utilized skin-fixed fiducials and CT/MRI for image registration and surgical planning.
- Assessed registration and intraoperative application accuracy over a five-month period.
Main Results:
- The Easy Guide Neuro system demonstrated clinical applicability in all cases.
- Achieved a mean registration accuracy of 3.4 mm for brain surgery and 14.4 mm for spine surgery.
- Intraoperative application accuracy was 4.2 mm for brain surgery, improving over time, but 11.3 mm for spinal surgery, deemed clinically insufficient due to registration inaccuracy.
Conclusions:
- The Easy Guide Neuro system provides accurate intraoperative guidance for various brain surgeries.
- Its current application accuracy in spinal surgery, using skin markers, is limited and exceeds clinical usefulness.