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Related Experiment Video

Updated: Jan 19, 2026

Fabrication and Characterization of Optical Tissue Phantoms Containing Macrostructure
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Stereotactic accuracy and frame mounting: A phantom study.

Onur Alptekin1, Felix S Gubler1, Linda Ackermans1

  • 1Department of Neurosurgery, Maastricht University Medical Center+, P. Debyelaan 25, 6229 HX Maastricht, The Netherlands.

Surgical Neurology International
|September 19, 2019
PubMed
Summary
This summary is machine-generated.

Asymmetrical frame mounting in stereotactic neurosurgery does not impact accuracy on the X or Y axes. However, it can introduce significant errors in the superoinferior (Z) axis, especially with manual calculations.

Keywords:
Accuracydeep brain stimulationframemountingphantom

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Area of Science:

  • Neurosurgery
  • Medical Imaging
  • Surgical Navigation

Background:

  • Frame mounting is a critical step in stereotactic neurosurgery.
  • Symmetric frame alignment is the clinical standard, parallel to Reid's line.
  • Asymmetric mounting may occur due to patient-specific factors.

Purpose of the Study:

  • To investigate the impact of asymmetric frame mounting on stereotactic electrode implantation accuracy.
  • To evaluate potential inaccuracies introduced by deviations in frame placement.

Main Methods:

  • A Citrullus lanatus model was used for stereotactic procedures.
  • Symmetric and asymmetric frame mounts were created after MRI, visualized with CT.
  • Accuracy was assessed using three stereotactic software packages and manual calculations.

Main Results:

  • Asymmetric frame mounting did not affect mediolateral (X) or anteroposterior (Y) axis accuracy.
  • Clinically relevant errors were observed in the superoinferior (Z) axis due to asymmetric mounting.
  • Manual calculations exhibited the largest Z-axis errors.

Conclusions:

  • Asymmetrical frame mounting can compromise stereotactic accuracy along the superoinferior (Z) axis.
  • The findings highlight the importance of precise frame alignment for accurate electrode placement.