Summary
Three different systems for image-assisted surgery were used for craniotomy in 130 patients affected by intracranial lesions of different types. A mechanically guided system (OAS, Radionics) and two optically guided systems (Easy-Guide, Philips and SMN, Zeiss) were randomly used in this series.
Nine to 11 cutaneous cranial markers were glued on the scalp before neuroimaging examination as fiducial points to allow a computerized reconstruction of a virtual “stereotactic” 3 D space containing the lesion of interest. In 20 patients 1.5 T brain MRI sequences were performed with an imaging protocol dedicated for use with Easy-Guide, SMN and OAS; in the other patients CT scans (50 slices, 3 mm thick) was performed.
This is a report of our preliminary experience with these systems for image-assisted surgery with particular regard to mathematical accuracy data and, on the basis of these results, to the reliability of hardware, software, impact on training of OR personnel and duration and quality of surgery. The advantages and limits of these frameless systems are discussed.
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© 1998 Springer-Verlag Berlin Heidelberg
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Broggi, G. et al. (1998). Image-Assisted Surgery of Brain Tumors and Other Intracranial Lesions: A Preliminary Report. In: Hellwig, D., Bauer, B.L. (eds) Minimally Invasive Techniques for Neurosurgery. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-58731-3_38
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DOI: https://doi.org/10.1007/978-3-642-58731-3_38
Publisher Name: Springer, Berlin, Heidelberg
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