Parotid gland

ADC pre RTH

post Stimulation

ADC post RTH

post Stimulation

T-test

N

Mean

±

SD

N

Mean

±

SD

t

p-value

RT Upper lobe

43

75.55

±

6.92

43

88.15

±

10.41

4.506

<0.001*

RT Lower lobe

43

85.40

±

7.73

43

101.65

±

12.36

4.987

<0.001*

RT Deep lobe

43

84.35

±

8.39

43

99.40

±

10.74

4.938

<0.001*

LT Upper lobe

43

74.65

±

7.65

43

91.50

±

8.30

6.675

<0.001**

LT Lower lobe

43

86.15

±

6.43

43

104.30

±

13.24

5.514

<0.001*

LT Deep lobe

43

85.15

±

8.42

43

102.05

±

11.18

5.399

<0.001*