193: Pre-Operative Versus Post-Operative Radiosurgery for Brain Metastasis: Volumetric and Dosimetric Comparison. (September 2016) - Doody, Janice; Vellayappan, Balamurugan; Malone, Shawn; Caudrelier, Jean-Michel; Vandervoort, Eric; Szanto, Janos; Sinclair, John