Related Experiment Video
Updated: Feb 15, 2026

Magnetic Resonance-Guided Stereotaxy for Infusions to the Pig Brain
Published on: March 31, 2023
Prohibited Arc Angles During Leksell Frame-Based Stereotaxy.
Holger Joswig1, Andrew G Parrent1, Keith W MacDougall1
1Epilepsy Program, Department of Clinical Neurological Sciences, Division of Neurosurgery, London Health Sciences Centre, University Hospital, London, Ontario, Canada.
This study provides a crucial matrix for Leksell frame stereotactic surgery, detailing usable and prohibited X-coordinate and arc angle combinations. This facilitates optimal trajectory planning for neurosurgical procedures.
Area of Science:
- Neurosurgery
- Medical Device Technology
- Surgical Navigation
Background:
- Leksell frame-based stereotaxy can face trajectory obstructions from arc supports.
- Specific X-coordinate and arc angle settings pose challenges for lateral trajectories.
Purpose of the Study:
- To develop a comprehensive matrix of usable and prohibited settings.
- To aid in identifying optimal lateral stereotactic trajectories with the Leksell frame.
Main Methods:
- Testing various X-coordinate and arc angle combinations.
- Utilizing a Leksell Multi-Purpose Stereotactic Arc on a Leksell Coordinate Frame G.
Main Results:
- A definitive matrix of usable and prohibited settings was generated.
- The matrix identifies specific combinations to avoid for unobstructed trajectories.
Conclusions:
- The developed matrix streamlines workflow in Leksell frame stereotactic procedures.
- Improved trajectory planning enhances surgical efficiency and safety.
Related Concept Videos
Framing Effects
Frames
Frames are versatile and widely used in various applications such as structural supports for beams and columns, automobile chassis construction, and in the construction...
Arc Length Function
Frames: Problem Solving II
Arc Length of a Curve: Problem Solving
Frames: Problem Solving I

