Structure

AAA (Gy)

AXB (Gy)

Difference

P-value

Lt Cochlear

D5%

3.1 (0.0, 23.7)

2.9 (0.0, 23.4)

0.2

<0.01

Rt Cochlear

D5%

3.0 (0.00, 32.3)

2.8 (0.0, 32.0)

0.2

0.01

Lt Parotid

Mean

29.8 (5.8, 52.7)

28.9 (5.6, 52.7)

0.9

<0.01

D50%

24.8 (5.7, 67.3)

24.0 (5.6, 67.0)

0.8

<0.01

D20%

49.2 (7.5, 68.5)

49.1 (7.2, 68.6)

0.1

0.75

Rt Parotid

Mean

26.3 (7.1, 46.9)

25.5 (7.0, 47.3)

0.8

0.02

D50%

20.6 (6.9, 54.6)

19.8 (8.2, 69.5)

0.8

0.94

D20%

46.0 (8.2, 69.5)

45.8 (8.1, 70.3)

0.2

0.94

Spinal cord

Max

34.3 (5.7, 45.0)

34.3 (5.5, 45.0)

0.0

0.80