Table 3 The mean dose (D mean ) and the maximum dose (D max ) to each of the swallowing structures and the partial volumes of each of these structures receiving a specified dose (V D S) as calculated from the dose-volume histograms (DVH) for patients with laryngeal primaries
Dose-volume data | |||||
|---|---|---|---|---|---|
Swallowing structure | Dmean (Gy) Mean ± SD (range) | Dmax (Gy) Mean ± SD (range) | V60 (%) Mean ± SD (range) | V65 (%) Mean ± SD (range) | V70 (%) Mean ± SD (range) |
PCM | 57.89 ± 9.49 (33.26 - 67.07) | 72.53 ± 3.33 (64.88 – 76.79) | 59.91 ± 16.35 (31.00 – 82.97) | 37.87 ± 18.54 (0.00 – 70.75) | 16.58 ± 15.97 (0.00 – 40.19) |
SPCM | 52.97 ± 12.57 (22.94 – 68.71) | 68.46 ± 5.61 (58.34 – 76.79) | 42.52 ± 27.99 (0.00 – 90.38) | 16.92 ± 24.95 (0.00 – 90.38) | 16.92 ± 24.95 (0.00 – 84.11) |
MPCM | 67.70 ± 3.78 (62.41 – 74.03) | 71.58 ± 3.74 (63.47 – 76.79) | 98.84 ± 2.51 (93.06 – 100.00) | 71.79 ± 38.37 (0.00 – 100.00) | 41.15 ± 44.95 (0.00 – 100.00) |
IPCM | 68.20 ± 3.64 (61.52 – 71.55) | 71.35 ± 3.48 (63.32 – 75.99) | 93.15 ± 17.48 (44.84 – 100.00) | 81.71 ± 36.25 (0.00 – 100.00) | 32.39 ± 35.80 (0.00 – 88.40) |
BOT | 48.65 ± 12.29 (23.71 – 71.49) | 68.75 ± 6.49 (53.82 – 74.83) | 36.37 ± 26.09 (0.00 – 99.99) | 19.99 ± 29.75 (0.00 – 99.97) | 11.21 ± 23.99 (0.00 – 77.40) |
Larynx | 71.13 ± 3.34 (64.16 – 74.89) | 74.85 ± 3.75 (66.42 – 79.30) | 99.30 ± 2.03 (93.54 – 100.00) | 87.27 ± 26.73 (20.00 – 100.00) | 68.98 ± 35.57 (0.00 – 100.00) |
PES | 49.99 ± 13.89 (25.41 – 66.83) | 65.48 ± 4.97 (55.77 – 69.85) | 32.83 ± 32.58 (0.00 – 100.00) | 20.86 ± 30.41 (0.00 – 99.32) | 0.00 |