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Table 2 SRT fractionation scheme

From: Risk factors of distant brain failure for patients with newly diagnosed brain metastases treated with stereotactic radiotherapy alone

Volume of single lesion Dose fractionation schemes Number of lesions
≤ 3 cc 20~30 Gy/1f/1d 45 Gy/5 Gy/9f/11d(2 lesions of brain stem) 78(35.3%)
3 cc~9 cc 24 Gy/12 Gy/2f/2d 30~36 Gy/10~12 Gy/3f/3d 40 Gy/10 Gy/4f/4-7d 40~45 Gy/8~9 Gy/5f/5-7d 120(54.3%)
≥ 9 cc 42 Gy/6 Gy/7f/9d 45 Gy/5 Gy/9f/11d 50 Gy/5 Gy/10f/12d 23(10.4%)
   Total: 221(100%)