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OBJECT The aim of this study was to analyze factors influencing survival time and patterns of distant recurrences after Gamma Knife surgery (GKS) for metastases to the brain. METHODS Information was available for 1855 of 1921 patients who underwent GKS for single or multiple cerebral metastases at 4 different institutions during different time periods(More)
OBJECT The aim of this study was to assess the order of micrometastases that can be detected with high-resolution MR imaging at the time of Gamma Knife surgery (GKS), and to estimate the impact this has on the time until and incidence of distant recurrences. METHODS A consecutive series of 835 patients with brain metastases treated with GKS in a 7-year(More)
OBJECT This report has been prepared to ensure more uniform reporting of Gamma Knife radiosurgery treatment parameters by identifying areas of controversy, confusion, or imprecision in terminology and recommending standards. METHODS Several working group discussions supplemented by clarification via email allowed the elaboration of a series of provisional(More)
The aim of the present study is to determine and compare initial treatment costs of microsurgery, linear accelerator (LINAC) radiosurgery, and gamma knife radiosurgery in meningioma patients. Additionally, the follow-up costs in the first year after initial treatment were assessed. Cost analyses were performed at two neurosurgical departments in The(More)
This study evaluates the impact of gamma knife radiosurgery (GKRS) on the quality of life (QOL) of patients with a sporadic vestibular schwannoma (VS). This study pertains to 108 VS patients who had GKRS in the years 2003 through 2007. Two different QOL questionnaires were used: medical outcome study short form 36 (SF36) and Glasgow benefit inventory (GBI).(More)
Purpose. The influence of initial inadequate excision (IIE) of soft tissue sarcoma (STS) on local control and overall survival is not well established. It is generally believed that an IIE may have a negative impact on both, despite subsequent treatment by radical surgery and radiotherapy. However, data on local recurrence-free survival/overall survival are(More)
OBJECTIVE To assess if modern management of extracranial malignant diseases has prolonged the survival times for patients with more than 2 brain metastases (BM). METHODS Data from 2385 patients treated with Gamma Knife surgery (GKS) for ≥3 BM between 1982 and 2011 were retrospectively analyzed. The patients were divided into 6 groups based on the(More)
BACKGROUND The dural tail (DT) has been described as a common feature in meningiomas. There is a great variation of tumor invasion and extent of tumor cells in the DT. Therefore, the necessity to include the whole DT in Gamma Knife radiosurgery is not clear, since inclusion increases the target volume and therefore increases the risk of complications. In(More)
BACKGROUND The aim of the study was to analyze the results following salvage Gamma Knife® surgery (GKS) for distant recurrent brain metastases in patients previously treated with GKS for brain metastases. METHODS Survival time and freedom from new distant recurrences (DR) were studied in 251 patients treated with salvage GKS for brain metastases that had(More)
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