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Minim Invasive Neurosurg. 2003 Feb;46(1):5-10.

Image-guided stereotaxy in the interventional MRI.

Author information

1
The Interventional Centre, The National Hospital of Norway, University of Oslo, Norway. eigil.samset@klinmed.uio.no

Abstract

BACKGROUND:

Stereotactic procedures employing frame-based systems and utilizing pre-operative MR or CT have several shortcomings such as long procedure time, patient discomfort and transport, poor fail-safe capabilities and targeting inaccuracies due to brain shift. Conducting all procedural steps in an interventional MRI has the potential of alleviating some of these deficiencies.

METHODS:

A stereotactic system consisting of a skull-mounted mechanical positioning device and customized navigation software has been developed. The accuracy of this system was tested within an interventional MRI employing a skull phantom.

RESULTS:

The mean distance between the targets hit and the planned target coordinates was 0.70 mm +/- 0.3 mm with a maximum distance of 1.3 mm.

INTERPRETATION:

The results indicate that the proposed stereotactic system can be used for stereotactic procedures in the interventional MRI.

PMID:
12640576
DOI:
10.1055/s-2003-37967
[Indexed for MEDLINE]
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