Table 1.
Dosimetry and plaque treatment parameters.
| Variable | Value | |
|---|---|---|
| Plaque size (mm), no. (%) | 10 | 4 (2) |
| 12 | 17 (10) | |
| 14 | 57 (34) | |
| 16 | 48 (28) | |
| 18 | 25 (15) | |
| 20 | 12 (7) | |
| 22 | 7 (4) | |
| 103Pd seeds, no. | Median | 13 |
| Mean | 15 | |
| Range | 5–30 | |
| Radiation dose to tumor apex (Gy) | Median | 80 |
| Mean | 79.5 | |
| Range | 5.9–99.8 | |
| Dose to lens (Gy) | Median | 6.5 |
| Mean | 11.2 | |
| Range | 0.9–100.3 | |
| Dose to fovea (Gy) | Median | 33.8 |
| Mean | 53.9 | |
| Range | 2.6–291.9 | |
| Dose to optic nerve (Gy) | Median | 32.4 |
| Mean | 47.2 | |
| Range | 3.6–257.3 | |
| Duration of treatment (hours) | Median | 166 |
| Mean | 164.1 | |
| Range | 118–172 |
1
Gray (Gy) = 100 cGy.