Table 2.
Statistics of mean dose and median dose (D50) for each structure with the 20-Gy cohort.
| Mean dose (Gy) | Median dose (Gy) | |||||
|---|---|---|---|---|---|---|
| Structure | Avg ± StdDev | 1st quartile | 3rd quartile | Avg ± StdDev | 1st quartile | 3rd quartile |
| Skeletal Bones | 21.1 ± 0.2 | 20.9 | 21.2 | 21.4 ± 0.4 | 21.2 | 21.6 |
| Lymph Nodes | 20.5 ± 0.5 | 20.3 | 20.8 | 21.3 ± 0.6 | 21.0 | 21.7 |
| Spinal Canal | 20.5 ± 0.5 | 20.3 | 20.6 | 21 ± 0.7 | 20.7 | 21.1 |
| Skull | 20.7 ± 0.7 | 20.1 | 21.2 | 21.2 ± 0.7 | 20.7 | 21.6 |
| Ribs | 19.5 ± 0.7 | 19.2 | 19.8 | 20.5 ± 0.8 | 20.2 | 20.8 |
| Bladder | 9.3 ± 1.5 | 8.3 | 10.2 | 8.4 ± 1.8 | 7.0 | 9.6 |
| Body | 13.3 ± 1.5 | 12.1 | 14.2 | 15 ± 1.6 | 14.1 | 16.0 |
| Brain | 14.8 ± 1.1 | 13.9 | 15.1 | 14.6 ± 1.2 | 13.7 | 14.8 |
| Breasts | 14.4 ± 0.8 | 14.0 | 14.8 | 14.2 ± 1.2 | 13.6 | 14.8 |
| Esophagus | 6.8 ± 1.4 | 6.1 | 7.0 | 6.1 ± 1.2 | 5.5 | 6.1 |
| Eyes | 4.2 ± 1 | 3.2 | 5.1 | 3.7 ± 0.9 | 3.0 | 4.3 |
| Heart | 7.5 ± 1.1 | 7.0 | 7.6 | 6.6 ± 1.3 | 6.1 | 6.8 |
| Kidneys | 7.5 ± 0.5 | 7.0 | 7.8 | 6.2 ± 0.5 | 5.7 | 6.6 |
| Lens | 3.3 ± 1 | 2.4 | 4.2 | 3.3 ± 1 | 2.4 | 4.1 |
| Liver | 14.1 ± 1.1 | 13.5 | 14.4 | 14.2 ± 1 | 13.5 | 14.9 |
| Lower GI | 9.6 ± 1.6 | 8.3 | 11.1 | 8.5 ± 2 | 7.0 | 10.4 |
| Lungs | 7.6 ± 0.6 | 7.4 | 7.9 | 6.7 ± 0.5 | 6.4 | 7.1 |
| Oral Cavity | 4.8 ± 1 | 4.0 | 5.3 | 3.9 ± 1 | 3.1 | 4.5 |
| Ovaries | 6.7 ± 3.1 | 4.9 | 7.9 | 6.1 ± 3 | 4.3 | 7.1 |
| Parotids | 8.2 ± 1 | 7.6 | 8.7 | 7.3 ± 1 | 6.6 | 7.7 |
| Rectum | 6.7 ± 0.9 | 6.1 | 7.2 | 5.7 ± 0.8 | 4.9 | 6.3 |
| Thyroid | 7.7 ± 1.2 | 6.8 | 8.1 | 7.1 ± 1.2 | 6.2 | 7.9 |
| Upper GI | 8.6 ± 1.3 | 7.8 | 9.1 | 7.7 ± 1.4 | 6.8 | 8.1 |