Organ | Objective | Rapid Arc Mean ± SD | LF-IMRT Mean ± SD | p-Value (Independent Student t test) | Rapid Arc vs LF-IMRT | |
Spinal Cord | D1% | <46 Gy | 37.7 ± 4.7 | 40.7 ± 7.1 | 0.047 | RA < IMRT |
Lt.Parotid | Mean (Gy) | <26 Gy | 21.26 ± 8.5 | 22.78 ± 11.2 | NS | - |
V30Gy (%) | <45% | 22.37 ± 14.6 | 22.49 ± 19.6 | NS | - | |
Rt.Parotid | Mean (Gy) | <26 Gy | 22.37 ± 7.43 | 24.1 ± 8.0 | NS | - |
V30Gy (%) | <45% | 25.52 ± 13.43 | 26.7 ± 14.1 | NS | - | |
Larynx | Mean (Gy) | <45 Gy | 37.49 ± 2.7 | 41.7 ± 4.2 | 0.002 | RA < IMRT |
Oral cavity | Mean (Gy) | <30 Gy | 28.22 ± 4.3 | 32.7 ± 3.8 | 0.004 | |
Healthy | Mean (Gy) | Minimise | 9.02 ± 2.9 | 10.3 ± 3.3 | NS | - |
Tissue | V5 Gy (%) | Minimise | 37.9 ± 9.3 | 37.0 ± 9.7 | NS | - |
V30 Gy (%) | Minimise | 10.1 ± 3.9 | 13.1 ± 5.2 | 0.037 | RA < IMRT | |
Integral | ||||||
Dose | ||||||
105 cm3∙Gy | Minimise | 1.147 ± 0.705 | 1.489 ± 0.758 | NS | - |