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MR Imaging Response of Brain Metastases after Gamma Knife Stereotactic Radiosurgery Radiology 211:807-814, Peterson,A.M.,et al, 1999 See this aricle in Pubmed Article Abstract Local tumor control was achieved in 66 (90%) of 73 metastases at 20 weeks after stereotactic radiosurgery; 61% maintained local control at 2 years. A homogeneous baseline enhancement pattern and initial good response rate (>50% lesion volu me reduction) predicted local control. Five metastases demonstrated a transient volume increase after treatment. The median survival time after stereotactic radiosurgery was 53 weeks and correlated with systemic disease burden and primary tumor type. B aseline homogeneous tumor enhancement and initial good response correlate with local control. Initial lesion growth does not preclude local control and may represent radiation-related change. Recognition of these serial MR imaging findings may guide ima ge interpretation and influence treatment in patients with stereotactic radiosurgery-treated metastases.

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(click to filter results - removes previous filter) cerebellar vermis gamma knife therapy MRI MRI,abnormal MRI,serial neoplasm,metastatic to CNS neoplasm,metastatic to CNS-location of neoplasm,metastatic to CNS-treatment of radiation therapy,CNS treatment and complications with radiation therapy,stereotactic

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