[Retracted] Research on Improving Radiotherapy Accuracy Based on Image-Guided Radiotherapy

Table 2

OBI safety and functional test items.

Content	X (cm)	y (cm)	z (cm)	u (°)	(°)	W (°)
System error	0.16	0.08	−0.03	0.72	0.20	0.20
The standard deviation	0.20	0.41	0.22
Random error	0.06	0.14	0.11	0.25	0.25	0.18
Placement outside enlarge	0.54	1.07	0.66