Changes in brain metastasis during radiosurgical planning

The time between planning MRI and radiosurgical treatment of brain metastases and tumor resection cavities is highly variable between centers. This prospective study performed a standardized planning MRI and a repeat verification MRI 24 hours prior to radiosurgery. Any change in management, including re-planning based on MRI-2 was recorded. Measurable changes occurred in brain metastases over a short amount of time with a change in management required in around 50% of patients and lesions.

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