Table 2 Treatment plan comparison cancer for hypopharynx/larynx

PTV

D_50%

Uniform

60.0 Gy

60.5 Gy

59.7 Gy

H

Dose

7.0

9.4

8.0

V_95%

60 Gy

97.8%

95.4%

95.7%

Normal Tissue

D_1%

≤ 60 Gy

58.4 Gy

58.1 Gy

57.8 Gy

D_20%

≤ 21 Gy

20.1 Gy

20.4 Gy

21.5 Gy

D_60%

≤ 4 Gy

1.9 Gy

1.9 Gy

2.0 Gy

Left Parotid

D_50%

≤ 26 Gy

23.7 Gy

23.1 Gy

29.4 Gy

Right Parotid

D_50%

≤ 26 Gy

20.6 Gy

23.3 Gy

26.4 Gy

Spinal Cord

D_{1 ccm}

≤ 39 Gy

36.9 Gy

39.8 Gy

37.6 Gy

Brain Stem

D_{1 ccm}

≤ 43 Gy

34.4 Gy

41.5 Gy

36.9 Gy

Left Joint*

D_50%

-

2.6 Gy

2.7 Gy

2.9 Gy

Right Joint*

D_50%

-

2.3 Gy

2.2 Gy

2.5 Gy

Monitor Units

MU/2.0 Gy

-

715

552

799

Time

Calculation

-

33:10 min

16:30 min

4:52 min

Delivery

-

5:00 min

2:08 min

14:15 min