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Table 2 Radiosurgical parameters

From: A minimally invasive treatment option for large metastatic brain tumors: long-term results of two-session Gamma Knife stereotactic radiosurgery

Parameters Median values (range)
  1st SRS 2nd SRS
Tumor volume (mL) 16.4 (10.0-56.1) 8.9 (2.3-42.6)
Prescribed isodose volume (mL) 18.4 (10.8-56.7) 11.7 (3.6-45.9)
Prescribed dose (Gy) 14 (10–16) 14 (10–15)
Prescribed isodose (%) 45 (40–52) 45 (40–60)
Maximum dose (Gy) 31.1 (20–38.1) 29.2 (22.2-35.7)
D95 (Gy) 14.7 (10.2-18.6) 15.0 (9.6-17.5)
  1. SRS = stereotactic radiosurgery, D95 = the dose 95% of the target volume receives.