Factors predicting local tumor control after gamma knife stereotactic radiosurgery for benign intracranial meningiomas.

Purpose: To determine the long-term outcomes and prognostic factors in benign intracranial meningiomas treated with gamma knife stereotactic radiosurgery (GK-SRS).

Methods And Materials: Between 1992 and 2000, 162 patients with benign meningiomas were treated with GK-SRS at the University of Maryland Medical Center. Complete follow-up was available in 137 patients.