Table 1
Finger’s slotted plaque radiation therapy
| Example of tumours | Plaque size | Slot width | Slot length | Source | Dose (tumour) | Prescription (point–axial) | Dose (optic disc) | Dose (fovea) |
|---|---|---|---|---|---|---|---|---|
| I, iodine; Pd, palladium; Ru, ruthenium. | ||||||||
| *See fig 2c. | ||||||||
| Juxtapapillary | ||||||||
| 10×10×5 | 16 | 8 | 6 | Pd-103 | 85 | 5 | 167.9 | 80.19 |
| 10×10×5 | 16 | 8 | 6 | I-125 | 85 | 5 | 135.9 | 64.9 |
| 10×10×5 | 16 | 8 | 6 | Ru-106 | 85 | 5 | 64.4 | 8.5 |
| Barely circumpapillary* | ||||||||
| 12×12×5 | 18 | 8 | 8 | Pd-103 | 85 | 5 | 144.9 | 67.54 |
| 12×12×5 | 18 | 8 | 8 | I-125 | 85 | 5 | 135.3 | 68.7 |
| 12×12×5 | 18 | 8 | 8 | Ru-106 | 85 | 5 | 229.3 | 59.19 |
| Moderately circumpapillary | ||||||||
| 14×14×5 | 20 | 8 | 10 | Pd-103 | 85 | 5 | 152.2 | 94.6 |
| 14×14×5 | 20 | 8 | 10 | I-125 | 85 | 5 | 136.7 | 85 |
| 14×14×5 | 20 | 8 | 10 | Ru-106 | 85 | 5 | 276.7 | 123.5 |
| Largely circumpapillary | ||||||||
| 16×16×5 | 22 | 8 | 12 | Pd-103 | 85 | 5 | 149.7 | 97.35 |
| 16×16×5 | 22 | 8 | 12 | I-125 | 85 | 5 | 171 | 110.3 |
| 16×16×5 | 22 | 8 | 12 | Ru-106 | 85 | 5 | 423.5 | 220.4 |
