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Table 3 Summary of the doses to the targets and OARs estimated by AAA, AXB and MC

From: Correlation between the γ passing rates of IMRT plans and the volumes of air cavities and bony structures in head and neck cancer

Structure

Parameter

AAA

AXB

MC

PGTVnx

V70.4, %

97.9±2.3 (19)

96.7±2.9 (17)

96.7±3.0 (16)

 

Dmax, Gy

75.8±1.4 (20)

77.4±1.4 (15)

77.4±1.5 (13)

PGTVnd

V70.4, %

97.3±1.1 (20)

96.7±2.4 (17)

96.6±2.8 (17)

 

Dmax, Gy

75.6±1.5 (20)

77.2±1.3 (20)

77.6±1.2 (15)

PTV1

V60.8, %

95.9±1.5 (18)

95.8±1.3 (17)

95.6±1.5 (17)

PTV2

V54.4, %

95.5±2.3 (15)

94.7±2.2 (13)

94.1±2.4 (11)

PTV

V56, %

94.6±2.6 (17)

92.1±4.5 (16)

90.9±6.9 (15)

 

Dmax, Gy

61.3±2.5 (15)

64.8±4.1 (13)

65.5±5.5 (12)

Brain stem

Dmax, Gy

46.9±13.8 (36)

47.2±13.8 (35)

47.5±14.1 (35)

Spinal cord

Dmax, Gy

32.7±11.4 (39)

32.8±11.4 (39)

33.2±11.3 (38)

Optic chiasm

Dmax, Gy

48.4±13.3 (40)

48.5±13.1 (40)

49.0±13.3 (39)

Left optic nerve

Dmax, Gy

43.2±16.0 (38)

43.4±16.1 (36)

43.4±16.2 (36)

Right optic nerve

Dmax, Gy

41.0±16.0 (38)

41.2±16.2 (38)

41.5±16.2 (38)

Pituitary

Dmax, Gy

54.8±9.8 (27)

55.4±9.6 (26)

56±9.9 (26)

Left len

Dmax, Gy

9.0±2.7 (37)

9.7±3.0 (36)

9.8±2.5 (35)

Right len

Dmax, Gy

11.2±10.5 (35)

11.5±10.5 (33)

11.8±11.1 (33)

Left eye

Dmean, Gy

12.8±4.2 (40)

12.6±4.2 (40)

12.4±4.3 (40)

Right eye

Dmean, Gy

13.6±5.6 (40)

13.4±5.6 (40)

13.2±5.7 (40)

Left temporal lobe

V60, cc

0.3±0.7 (37)

0.3±0.8 (37)

0.3±0.8 (37)

Right temporal lobe

V60, cc

0.2±0.6 (38)

0.2±0.6 (38)

0.2±0.5 (38)

Mandible

V55, %

2.4±4.2 (39)

2.4±4.4 (39)

2.4±4.1 (39)

Left parotid gland

Dmean, Gy

16.0±16.5 (29)

15.9±16.6 (29)

15.8±16.6 (29)

Right parotid gland

Dmean, Gy

16.2±16.5 (27)

16.0±16.6 (27)

15.8±16.5 (27)

Left inner ear

Dmean, Gy

22.7±15.7 (25)

22.5±15.7 (26)

22.5±15.7 (26)

Right inner ear

Dmean, Gy

22.2±14.6 (25)

21.8±14.6 (26)

21.5±14.5 (26)

Oral cavity

Dmean, Gy

32.0±14.0 (40)

31.6±13.8 (40)

31.3±13.6 (40)

  1. The numbers in brackets counted the plans satisfying the clinical requirements