Table 3. Re-irradiation scheme.

Variables	Values
Re-irradiation method, n (%)
SRS	4 (11.1)
FSRS	10 (27.8)
HSRT	22 (61.1)
Re-irradiation total dose (Gy)
Median (range)	32 (18–45)
EQD2 Median (range)	46.7 (31.3–68.0)
Re-irradiation fractional dose (Gy)
Median (range)	6 (2.2–24.0)
Re-irradiation PTV (cm3)
Median (range)	27 (0.4–192.8)

SRS, stereotactic radiosurgery; FSRS, fractionated stereotactic radiosurgery; HSRT, hypo-fractionated stereotactic radiotherapy; EQD2, equivalent dose in 2 Gy fractions; PTV, planning target volume