Table 4.

GPRs of Octavius 1000 SRS results according to the number of control points.

Number of control points		25	49	73	91	145	241
GPR (%)
6 MV-FFF	3%/3 mm	94.3	94.7	93.6	95.8	96.0	97.0
	1%/1 mm	85.5	84.8	80.9	88.2	88.1	89.6
10 MV-FFF	3%/3 mm	97.4	97.0	96.4	96.2	96.9	96.7
	1%/1 mm	87.2	85.5	86.8	85.4	90.0	90.7