Hypofractionated radiosurgery for intact or resected brain metastases: defining the optimal dose and fractionation

Table 2 HR fractionation schedules

Fractionation schedulen = 42 patients	n (%)	BED₁₀	SFED(Gy)
7 Gy x 3*	28 (67)	37.5	17.4
6 Gy x 4**	6 (14)	38.4	18.6
6 Gy x 5	5 (12)	48	22.8
5 Gy x 5	2 (4)	37.5	17.8
5 Gy x 6	1 (2)	45	21

*Three patients status-post subtotal resection (STR) received 7 Gy x 3 to the PTV with a simultaneous infield boost (SIB) to the GTV for an additional 1 Gy per fraction. ** One patient status-post STR received 6 Gy x 4 to the PTV with a SIB to the GTV for an additional 1.5 Gy per fraction.

ISSN: 1748-717X