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MRI-guided endoscopy in the brain: a feasability study.

M Scholz·M Deli·U Wildförster·K Wentz·A Recknagel·H Preuschoft·A Harders
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Abstract

For neuronavigation in neuroendoscopy conventional navigation systems cannot exclude tissue movements caused by loss of cerebrospinal fluid (CSF). Open MRI can serve as a real-time navigation system if special conditions of endoscopic instruments and equipment are followed. We adapted an endoscopic system to the MRI and installed a miniaturized laser guidance system to project the central transaxial and coronal planes onto the phantom. A human cadaveric model was examined with a flexible microendoscope marked with a titanium wire inside the open magnet. The procedures were guided by gradient echo sequences refreshing the image every 4.5 seconds to control position of the endoscope. Endoscopic and corresponding MRI-findings are presented. Results and technical conditions are discussed.

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M Scholz, M Deli, U Wildförster, K Wentz, A Recknagel, H Preuschoft, A Harders. 1996. MRI-guided endoscopy in the brain: a feasability study.. https://doi.org/10.1055/s-2008-1052212

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Impairment of echocardiographic acoustic window caused by breast implants.

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