Purpose To determine whether there are any changes in brain metastases or resection
cavity volumes between planning magnetic resonance imaging (MRI) and radiosurgery (RS)
treatment and whether these led to a change in management or alteration in the RS plan.
Methods and Materials Patients undergoing RS for brain metastasis or tumor resection
cavities had a standardized planning MRI (MRI-1) performed and a repeat verification MRI
(MRI-2) 24 hours before RS. Any change in management, including replanning based on …