Table 2.
Expected IQ difference after 10 years by using PBT instead of X-ray therapy
| No. | Age (y) | Sex | Tumor | Prescribed dose (Gy) | Dose difference of the brain (%) (3D-CRT-PBT) | Dose difference of the brain (%) (IMRT-PBT) | Expected IQ difference (PBT-3DCRT) | Expected IQ difference (PBT-IMRT) |
|---|---|---|---|---|---|---|---|---|
| 1. | 6 | M | Ependymoma | 50.4 | 2.97 | 3.23 | 3.4 | 3.7 |
| 2. | 6 | M | Ependymoma | 54.0 | 3.29 | 3.08 | 3.8 | 3.5 |
| 3. | 2 | F | Ependymoma | 50.4 | 5.70 | 5.34 | 6.5 | 6.1 |
| 4. | 3 | F | Ependymoma | 59.4 | 8.67 | 9.74 | 9.9 | 11.1 |
| 5. | 4 | M | Ependymoma | 61.2 | 8.38 | 11.20 | 9.6 | 12.8 |
| 6. | 3 | F | Ependymoma | 45.0 | 4.64 | 4.59 | 5.3 | 5.2 |
| 7. | 11 | M | Germinoma | 30.6 | 3.92 | 3.34 | 4.5 | 3.8 |
| 8. | 16 | F | Germinoma | 30.6 | 3.67 | 4.07 | 4.2 | 4.6 |
| 9. | 10 | M | Germinoma | 30.6 | 3.73 | 4.28 | 4.3 | 4.9 |
| 10. | 14 | M | Germinoma | 30.6 | 3.92 | 3.83 | 4.5 | 4.4 |
| 11. | 14 | F | Germinoma | 24.0 | 2.88 | 1.34 | 3.3 | 1.5 |
| 12. | 12 | F | Germinoma | 30.6 | 4.62 | 3.52 | 5.3 | 4.0 |