Table 5. Top 10 rankings of the three indexes affecting radiotherapy re-planning.

Index	P1	P2	P3	R
Rectal Dmax	0.88	−0.06	0.11	0.444
PTV Dmax	0.87	0.18	−0.23	0.443
Bladder Dmax	0.85	0.18	−0.20	0.439
Rectal D2cc	0.82	−0.07	0.14	0.417
Rectal D1cc	0.83	−0.07	0.09	0.412
PTV Dmean	0.89	0.08	−0.29	0.411
Bladder D1cc	0.81	0.16	−0.23	0.407
Bladder D2cc	0.83	0.12	−0.27	0.397
External Dose	0.68	0.20	−0.05	0.390

The three main influencing indexes were obtained, and the effects of the three indexes were comprehensively considered, namely, λ₁=0.5; λ₂=0.3; λ₃=0.2. Among them, P₁, P₂, and P₃ are the “dose index”, “tumor size index”, and “V30 index”, respectively. PTV, planning target volume.