 Data relevant to the evaluation the effectiveness of the GliaSite RTS for a resected dominant brain metastases will be collected. The GliaSite RTS is a radionuclide applicator and liquid radionuclide Iotrex designed to deliver intracavitary radiation therapy for resected brain tumors. In this case, it will irradiate the resected margins. Brain metastases not surgically removed will be then treated with radiosurgery 