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Table 3 Summary of the OARs dosimetry parameters of the reoptimized treatment plans (Plan_FD and Plan_UIH) and the original clinical treatment plans (Plan_Manual). All of the values are reported as the mean ± standard deviation

From: The dosimetric impact of deep learning-based auto-segmentation of organs at risk on nasopharyngeal and rectal cancer

Site

Structure

Dose-volume metrics

Plan

Value

Comparison (paired t test)

Rectal

Bladder

V40 (%)

Manual

43.45 ± 26.96

–

FD

43.73 ± 26.28

p = 0.93

UIH

41.76 ± 26.55

p = 0.14

Dmean (cGy)

Manual

3476 ± 1281

–

FD

3464 ± 1264

p = 0.82

UIH

3427 ± 1262

p = 0.25

Femoral head_L

Dmean (cGy)

Manual

2199 ± 773

–

FD

2160 ± 718

p = 0.60

UIH

2185 ± 824

p = 0.90

Femoral head_R

Dmean (cGy)

Manual

2130 ± 755

–

FD

2085 ± 712

p = 0.41

UIH

2153 ± 819

p = 0.79

NPC

Eye_L

Dmax (cGy)

Manual

2199 ± 1175

–

FD

2135 ± 1265

p = 0.56

UIH

2153 ± 1168

p = 0.71

Eye_R

Dmax (cGy)

Manual

2441 ± 1892

–

FD

2386 ± 1906

p = 0.61

UIH

2463 ± 1906

p = 0.88

Spinal cord

Dmax (cGy)

Manual

4261 ± 161

–

FD

4227 ± 191

p = 0.18

UIH

4251 ± 281

p = 0.86

Brainstem

Dmax (cGy)

Manual

5578 ± 803

–

FD

5528 ± 717

p = 0.43

UIH

5551 ± 706

p = 0.72

Parotid_L

V30 (%)

Manual

57.78 ± 25.86

–

FD

58.07 ± 26.73

p = 0.82

UIH

57.37 ± 26.36

p = 0.77

Dmean (cGy)

Manual

4365 ± 926

–

FD

4381 ± 959

p = 0.65

UIH

4307 ± 951

p = 0.33

Parotid_R

V30 (%)

Manual

55.53 ± 23.68

–

FD

55.16 ± 23.82

p = 0.78

UIH

53.96 ± 24.88

p = 0.52

Dmean (cGy)

Manual

4060 ± 508

–

FD

4057 ± 538

p = 0.95

UIH

3936 ± 608

p = 0.15

Len_L

Dmax (cGy)

Manual

592 ± 390

–

FD

591 ± 387

p = 0.84

UIH

588 ± 379

p = 0.68

Len_R

Dmax (cGy)

Manual

568 ± 385

–

FD

529 ± 279

p = 0.34

UIH

529 ± 281

p = 0.36

Optic nerve_L

Dmax (cGy)

Manual

3551 ± 2224

–

FD

3493 ± 2276

p = 0.32

UIH

3525 ± 2206

p = 0.69

Optic nerve_R

Dmax (cGy)

Manual

3612 ± 2115

–

FD

3617 ± 2119

p = 0.94

UIH

3784 ± 2113

p = 0.21

Temporal lobe_L

Dmax (cGy)

Manual

6376 ± 2126

–

FD

6444 ± 2156

p = 0.05

UIH

6397 ± 2125

p = 0.62

Temporal lobe_R

Dmax (cGy)

Manual

6430 ± 2143

–

FD

6442 ± 2130

p = 0.76

UIH

6390 ± 2123

p = 0.27

Oral cavity

Dmean (cGy)

Manual

3933 ± 551

–

FD

3928 ± 566

p = 0.73

UIH

3895 ± 565

p = 0.12

Larynx

Dmean (cGy)

Manual

3829 ± 153

–

FD

3809 ± 169

p = 0.46

UIH

3798 ± 195

p = 0.28