1.

施源器处理前不同配准框大小对配准精度的影响

Effect of different sizes of the registration region on registration precision without removing the applicators

Structures	Regions	DSC (Mean±SD)	S vs M	S vs L	M vs L
	S	0.722±0.112
HRCTV	M	0.688±0.124	t=4.036, P=0.001	t=6.358, P=0.000	t=4.188, P=0.001
	L	0.607±0.115
	S	0.764±0.098
IRCTV	M	0.743±0.099	t=3.742, P=0.002	t=3.688, P=0.002	t=3.236, P=0.006
	L	0.699±0.118
	S	0.689±0.221
Bladder	M	0.786±0.201	t=-3.450, P=0.004	t=-1.922, P=0.075	t=4.452, P=0.001
	L	0.737±0.204
	S	0.616±0.190
Rectum	M	0.664±0.152	t=-2.830, P=0.013	t=1.543, P=0.145	t=4.317, P=0.001
	L	0.585±0.194