CYBERKNIFE -INTRACRANIAL REVIEWS
Staged stereotactic irradiation for acoustic neuroma. Chang et al. 2005. Stanford researchers show that fractionated treatment using the CyberKnife System for acoustic neuromas may improve hearing preservation.
Robotically guided radiosurgery for children. Giller, et al. 2005. Researchers from Baylor University Medical Center used the CyberKnife System to achieve local control for children with some types of CNS tumors.
Visual field preservation after multisession CyberKnife radiosurgery for perioptic lesions. Adler, et al. 2006. Stanford University researchers used the CyberKnife System to obtain high rates of tumor control for tumors near (less than 2 mm from) the optic apparatus; over 90% of patients treated maintained or improved their vision.
Stereotactic radiosurgery using CT cisternography and non-isocentric planning for the treatment of trigeminal neuralgia. Lim et al. 2006. Researchers from Stanford University used the CyberKnife System to treat trigeminal neuralgia. Ninety percent of patients treated rated their pain control as excellent with limited facial numbness at 10 months follow-up.
Stereotactic radiosurgery of the postoperative resection cavity for brain metastases. Soltys, et al. 2007. Researchers from Stanford University used the CyberKnife System for adjuvant treatment of brain metastases by targeting post-resection cavities. They obtained a 79% local control rate at 12 months, which compares favorably to historic whole brain radiation treatment results.
A volumetric study of CyberKnife hypofractionated stereotactic radiotherapy as salvage for progressive malignant brain tumors: initial experience. Giller et al. 2007. Researchers from Baylor University Medical Center used the CyberKnife System to perform fractionated stereotactic radiosurgery on lesions that are difficult to treat in a single fraction approach.
Survival following CyberKnife radiosurgery and hypofractionated radiotherapy for newly diagnosed glioblastoma multiforme. Lipani et al. 2008. Researchers from Stanford University performed CyberKnife System treatment on 20 GBM patients after tumor resection. The overall median survival was 16 months, which compares favorably to post-surgical external beam radiation therapy.
Cost-effectiveness analysis for trigeminal neuralgia: CyberKnife vs microvascular decompression. Tarricone et al. 2008. Investigators from Milan, Italy show that both radiosurgery using the non-invasive CyberKnife® System and a surgical treatment, microvascular decompression (MVD), produce high rates of pain relief. The costs of a hospital stay and surgery, however, make MVD more expensive than CyberKnife SRS.
CyberKnife radiosurgery for benign meningiomas: short-term results in 199 patients. Colombo et al. 2009. Researchers from Vicenza, Italy demonstrated a 5-year actuarial tumor control rate of 93.56% and a 0.5% complication rate. According to the authors, the ability to conveniently treat in multiple sessions allowed them to treat “63 patients (30%) who could not have been treated by single-session radiosurgical techniques.”
Quality of radiosurgery for single brain metastases with respect to treatment technology: a matched-pair analysis. Wowra et al. 2009. This study compares the technical features of the Gamma Knife and the CyberKnife® System, and their clinical outcomes in the treatment of single brain metastases, using the method of matched-pair analysis. Clinical outcomes were nearly identical between groups.
Nonisocentric radiosurgical rhizotomy for trigeminal neuralgia. Adler et al. 2009. Stanford researchers examined outcomes after radiosurgery using the CyberKnife® System for trigeminal neuralgia using treatment parameters that have evolved over several years. This “optimal” treatment approach resulted in pain relief judged as excellent or good by 96% of patients, with relatively low rates of facial numbness.
Early results of CyberKnife radiosurgery for arteriovenous malformations. Colombo et al. 2009. Researchers using the CyberKnife® System in Vicenza, Italy conducted a prospective study of 279 patients with arteriovenous malformations (AVMs) treated with the CyberKnife System. The overall rate of complete obliteration was 81.2% in patients with 36 months of follow-up, and no permanent complications were observed.
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