A miniature optical neuronavigation system for CT-guided stereotaxy

Christopher R. Von Jako, Gabor Perlaki, Gergely Orsi, Attila Schwarcz, T. Dóczi

Research output: Article

Abstract

Background and Objective: Neuronavigation devices have progressed over the past 2 decades, but logistical limitations remain for many stereotactic procedures. We describe our technique and accuracy for a novel miniature optical tracking system which overcomes these limitations. Method: The minioptical tracking system uses a miniature video camera mounted on a rigid cannula to determine cannula location and orientation relative to a patient-attached sticker containing reference markers. A CT scan is used to register these markers to the anatomy and a user-selected target. A computer displays the cannula guidance information to the target. Bench testing was performed on 225 targets in a custom test phantom and additional testing was performed on 20 small targets in an anthropomorphic head phantom to determine the practical accuracy and workflow. Results: The phantom study demonstrated that 3-D navigation accuracy is 1.41 ± 0.53 mm. There was a 100% head phantom study success rate for the 20 small targets. Conclusions: The resulting accuracy data demonstrated good correlation with the CT data, and the clinical simulation workflow indicated its potential usefulness for common neurosurgical applications. Furthermore, this small-footprint tracking technology does not experience the traditional environmentally induced issues or the requirement of pin-based head fixation, allowing for use in the neurointensive care unit and the emergency department.

Original languageEnglish
Pages (from-to)1-7
Number of pages7
JournalStereotactic and Functional Neurosurgery
Volume92
Issue number1
DOIs
Publication statusPublished - jan. 2014

Fingerprint

Neuronavigation
Optical Devices
Workflow
Head
Hospital Emergency Service
Anatomy
Technology
Equipment and Supplies
Cannula

ASJC Scopus subject areas

  • Clinical Neurology
  • Surgery

Cite this

A miniature optical neuronavigation system for CT-guided stereotaxy. / Von Jako, Christopher R.; Perlaki, Gabor; Orsi, Gergely; Schwarcz, Attila; Dóczi, T.

In: Stereotactic and Functional Neurosurgery, Vol. 92, No. 1, 01.2014, p. 1-7.

Research output: Article

Von Jako, Christopher R. ; Perlaki, Gabor ; Orsi, Gergely ; Schwarcz, Attila ; Dóczi, T. / A miniature optical neuronavigation system for CT-guided stereotaxy. In: Stereotactic and Functional Neurosurgery. 2014 ; Vol. 92, No. 1. pp. 1-7.
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