Table 3 D95 % and V95 % of the PGTVnx for the patients with locally-advanced nasopharyngeal carcinoma stratified by the distance from the primary tumor to the brain stem (Dbs)
D95 %/V95 % | D95 % (Gy) | Total | V95 % (%) | Total | ||
|---|---|---|---|---|---|---|
Dbs ≤ 4.7 | Dbs > 4.7 | Dbs ≤ 4.7 | Dbs > 4.7 | |||
Mean ± SD | 69.0 ± 4.9 | 73.1 ± 2.0 | 71.5 ± 4.0 | 94.8 ± 3.2 | 99.1 ± 1.6 | 97.5 ± 3.2 |
Median | 70.0 | 73.7 | 72.3 | 95.2 | 99.8 | 98.8 |
Range | 49.9–80.5 | 64.9–81.0 | 49.9–81.0 | 84.4–99.8 | 90–100 | 84.4–100 |