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KMID : 0942820030020010003
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Journal of Korean Brain Tumor Society
2003 Volume.2 No. 1 p.3 ~ p.6
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Usefulness of Image-Gided Surgery in Skull Base Brain Tumors
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Jung Ki-Ho
Jung Shin
Kim Jae-Hyu
Kang Sam-Suk
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Abstract
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Introduction: SKull base tumors represent technically formidable to neurosurgeons, due to their proximity fo adjacent vital structures, and deep and narrow operative field in the surrounding compact bony structure. We introduce technique of image-guided surgery and usefulness of neuronavigation system in skull base tumors.
Meterials and Methods: Between February 2000 and January 2003, 27 patients (four males and twenty three females with mean age of 53.29), harboring skull base tumors underwent surgery using the neuronavigation system in our department. Preoperative in th others. The mean accuracy in neuronavigation system and volume of skull base tumors were 1.2mm and 32.08cc respectively.
Results: gross total removal was accomplished in twenty four(89%) cases and incomplete removal in three(11%). The causes of incomplete removal included cavermous sinus invasion in one case, and servere adhesion to the brain stem or cranial nerve in two. The lacations of tumor were sphenoidal in 8 cases, cerebellopontine angle in 5 cases, pethology included 21 meningiomas, 5 schwannomas, and a chordoma.
Conclusions: Neuronavigation system in skull base tumors has advantage of not only planning of trajectory, safe intratumoral decompression, but also identification of tumor lacalization and adjacent vital structure, because brain shifting by CSF drainage or craniotomy can be negligible during operation.
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KEYWORD
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Brain tumor, Skull base, Image-guided surgery, Neuronavigation system
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