Table 1.

The optimization objectives for GBPO plans (Dose unit: Gy).

ROI	Weight	MIN	MAX	Weight
HR-CTV	100	6.0	–	–
Bladder	–	–	4.5	50
Rectum	–	–	4.5	80
Sigmoid	–	–	4.5	80

“-” means that this parameter was not used in the optimization.