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  • Title: Image-guided stereotaxy in the interventional MRI.
    Author: Samset E, Hirschberg H.
    Journal: Minim Invasive Neurosurg; 2003 Feb; 46(1):5-10. PubMed ID: 12640576.
    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.
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