Table 1.

The average value and standard deviation (mean ± SD) of relevant clinical indices for all the testing patients.

Structure	Clinical indices (Gy)	TPS calculation	DL calculation	t-test p-value
Nasopharyngeal
Brainstem	Dmax	53.45 ± 1.85	55.50 ± 2.12	0. 05
Left parotid gland	Dmean	41.76 ± 3.21	42.56 ± 3.01	0.59
	V30 (%)	68.42 ± 7.48	71.70 ± 7.06	0.35
Right parotid gland	Dmean	38.07 ± 3.73	38.18 ± 3.38	0. 95
	V30 (%)	60.67 ± 10.51	62.20 ± 8.94	0. 74
Spinal cord	Dmax	40.55 ± 1.80	42.45 ± 2.27	0. 06
Left len	Dmax	6.60 ± 1.26	7.30 ± 1.14	0. 23
Right len	Dmax	6.50 ± 0.87	7.00 ± 0.89	0. 24
Left nerve	Dmax	52.95 ± 7.19	52.55 ± 7.72	0. 91
Right nerve	Dmax	56.65 ± 8.65	52.45 ± 9.11	0. 96
Chiasm	Dmax	37.30 ± 18.62	37.45 ± 17.53	0. 99
Left temporal lobe	Dmax	67.85 ± 4.95	67.65 ± 4.67	0. 93
Right temporal lobe	Dmax	67.80 ± 5.01	68.25 ± 5.36	0.86
Oral cavity	Dmean	36.02 ± 4.74	36.55 ± 4.47	0.81
Larynx	Dmean	36.50 ± 3.44	36.41 ± 3.44	0. 96
Lung
Heart	Dmean	11.99 ± 7.71	12.17 ± 7.61	0. 96
Spinal cord	Dmax	40.79 ± 2.59	42.71 ± 2.79	0. 11
Breast
Left lung	V20 (%)	7.81 ± 7.65	8.00 ± 7.90	0. 97
Right lung	V20 (%)	11.17 ± 10.30	11.32 ± 10.45	0. 98
Heart	Dmean	2.44 ± 1.70	2.50 ± 1.69	0. 94
Rectum
Left femoris	V30 (%)	20.65 ± 12.39	21.40 ± 13.77	0.89
Right femoris	V30 (%)	17.11 ± 11.51	17.47 ± 11.92	0. 94
Bladder	V30 (%)	64.56 ± 23.26	66.40 ± 23.79	0.85