Skip to main content

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