Further development and clinical application of the stereotactic operating microscope

Area of Science:

• Neurosurgery
• Medical Imaging
• Surgical Navigation Systems

Background:

• Frameless stereotactic systems enhance surgical precision.
• Operating microscopes benefit from advanced image processing.
• Multimodality imaging integration is crucial for complex procedures.

Purpose of the Study:

• To implement an improved image processing workstation for a frameless stereotactic operating microscope.
• To enhance three-dimensional data reconstruction and multimodality imaging integration.
• To evaluate the clinical utility and accuracy of the enhanced system.

Main Methods:

• Implementation of a Vicom-VME image processing workstation.
• Utilized an improved interpolation algorithm for 3D data reconstruction.
• Integrated multimodality imaging and added stereotactic graphics display.
• Employed a precision-milled coupling for reproducible microscope attachment.

Main Results:

• Achieved more accurate 3D data reconstruction and graphical integration of multimodality imaging.
• Demonstrated clinical utility in navigating deep lesions and defining tumor resection extent.
• Attained a mean accuracy of 3.5-6.5 mm in 17 cases.
• Enabled 7 extracranial stereotactic surgical procedures using the frameless methodology.

Conclusions:

• The enhanced stereotactic operating microscope system improves navigational guidance and accuracy.
• The frameless methodology is valuable for complex neurosurgical interventions.
• Further applications in extracranial stereotactic surgery are demonstrated.