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Table 1 Summary of clinical data from 58 consecutive patients with 61 large BM

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

Characteristics Values
Sex (male/female) 37/21
Age (years), median (range) 66 (32–88)
KPS, median (range) 70 (30–100)
Active Extra-CNS disease/Extra-CNS metastasis 45 (76%)
RTOG-RPA class I/class II/class III 3/27/28
Primary cancer  
  Lung 34
  Breast 7
  Colon & Rectus 7
  Ovary 2
  Double cancer 3
  Other 5
No. of intracranial lesions, median (range) 2 (1–8)
Tumor location  
  Supratentorial 41
  Infratentorial 20
Procedures prior to SRS  
  Craniotomy 14
  Ommaya reservoir 10
  WBRT 4
  1. BM = brain metastases, KPS = Karnofsky performance status, CNS = central nervous system, RTOG-RPA = radiation treatment oncology group recursive partitioning analysis, SRS = stereotactic radiosurgery, WBRT = whole brain radiotherapy.