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International Journal of Computer Assisted Radiology and Surgery

Erschienen in:

01.03.2016 | Original Article

Laser-assisted flat-detector CT-guided intracranial access

verfasst von: Daniel L. Cooke, Michael R. Levitt, Louis J. Kim, Danial K. Hallam, Laligam N. Sekhar, Basavaraj V. Ghodke

Erschienen in: International Journal of Computer Assisted Radiology and Surgery | Ausgabe 3/2016

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Abstract

Purpose

Flat-detector CT can be integrated with C-arm fluoroscopy for CT-guided neurosurgical and endovascular procedures. We studied the accuracy of this technique with laser assistance in targeting intracranial lesions in a cranial model.

Methods

An acrylic scale-model skull containing foam parenchyma was embedded with 2.16-mm-diameter targets. A flat-detector CT was acquired and registered to the skull’s position. Ten targets were accessed with biopsy needles under fluoroscopic guidance, flat-detector CT overlay, and laser assistance. Accuracy was measured from the needle tip to the target center using flat-detector CT.

Results

Ten targets were accessed successfully using XperGuide software. Needles were placed within 1.30 \(\pm \) 0.63 mm of target isocenter. Accuracy did not vary by entry site, operator, location, or lesion depth.

Conclusions

Laser-assisted flat-detector CT-guided targeting of all intracranial targets was successful with excellent accuracy. This technique can be applied to other minimally invasive neurosurgical procedures.

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Titel: Laser-assisted flat-detector CT-guided intracranial access
verfasst von: Daniel L. Cooke
Michael R. Levitt
Louis J. Kim
Danial K. Hallam
Laligam N. Sekhar
Basavaraj V. Ghodke
Publikationsdatum: 01.03.2016
Verlag: Springer Berlin Heidelberg
Erschienen in: International Journal of Computer Assisted Radiology and Surgery / Ausgabe 3/2016
Print ISSN: 1861-6410
Elektronische ISSN: 1861-6429
DOI: https://doi.org/10.1007/s11548-015-1271-5

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Laser-assisted flat-detector CT-guided intracranial access