Table 2.

Summary of technical delivery parameters

Items	N (%)/Mean ± SD (range)
Number of partial arcs	4.4 ± 0.9 (3–6)
Coplanar arcs	Yes: 3 (14%)
	No: 19 (86%)
Arc length (deg)	76.6 ± 55.5 (30;240)
MU/Gy	190 ± 46 (136;351)
Dose rate (MU/minute)	1454 ± 382 (922–2400)
BOT (min)	0.7 ± 0.2 (0.4;1.4)
CP area (cm 2 )	59.5 ± 42.9 (8.2;192.2)
Collimator angle	30.8 ± 12.4 (13;48)

CP = Control Point; BOT = Beam on time, BOT = beam on time, MU = Monito Units.

SD: standard deviation.