Articles: neuronavigation.
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Minim Invas Neurosur · Aug 2006
Application of neuronavigation system to brain tumor surgery with clinical experience of 420 cases.
A new era of neurosurgery has recently been unveiled with the advent of image-guided surgery. The use of neuronavigation is beginning to have a significant impact on a variety of intracranial procedures. Herein, we report our clinical experience using a neuronavigation system with different surgical applications and techniques for a variety of brain tumors. ⋯ We utilized this system to effectively make bone flaps, to detect critically located, deep-seated, subcortical, skull-base and skull bone tumors, and to operate on intraparenchymal lesions with grossly unclear margins, such as gliomas. We also performed tumor biopsy using the combination of a conventional stereotactic biopsy instrument and an endoscope. The application of the neuronavigation system not only revealed benefits for operative planning, appreciation of anatomy, lesion location and the safety of surgery, but also greatly enhanced surgical confidence.
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Vertebroplasty is a image-guided therapeutic procedure, consisting of an injection of acrylic cement through a bone biopsy needle into a vertebral body. Main indication for vertebroplasty is painful vertebral body compression fracture due to osteoporosis. The procedure is an efficient mean with high success in pain release and prevention of further collapse of the treated vertebrae; however, the technique does not allow to realign the spine. ⋯ All three modalities mentioned above have been applied in the treatment of our patient suffered from multiple osteoporotic vertebral body compression fractures. Using kyphoplasty an almost total VB height restoration could be achieved. The pain relief was more than 50% after both operation.
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Neurological research · Jul 2006
Intraoperative visualization for resection of gliomas: the role of functional neuronavigation and intraoperative 1.5 T MRI.
To investigate how functional neuronavigation and intraoperative high-field magnetic resonance imaging (MRI) influence glioma resection. ⋯ The combination of intraoperative MRI and functional navigation allows safe extended resections in glioma surgery. However, despite extended resections, still in the majority of the grade III and IV gliomas no gross total resection could be achieved owing to the extension of the tumor into eloquent brain areas. Intraoperative MRI data can be used to localize the tumor remnants reliably and compensate for the effects of brain shift.
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The aim of this paper was to outline the use of frameless stereotaxy for the safe insertion of C1/C2 transarticular screws in the clinical setting of patients with atlanto-axial instability. ⋯ Frameless stereotaxy can be applied safely in a clinical setting for transarticular screw fixation. Image guidance can facilitate preoperative planning and help determine an optimal trajectory that avoids the vertebral artery.
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Neurol. Med. Chir. (Tokyo) · Jun 2006
Case ReportsNeuronavigation-assisted transoral-transpharyngeal approach for basilar invagination--two case reports.
Two patients presented with congenital basilar invagination manifesting as progressive myelopathy. Both patients underwent surgery using a neuronavigation-assisted transoral-transpharyngeal approach. The Brain-LAB Vector Vision navigation system was used for image guidance. ⋯ After decompression, posterior stabilization was performed. Both patients had an uneventful postoperative course. The transoral-transpharyngeal approach with the neuronavigation system provides safe exposure and decompression for basilar invagination.