Table 2. MRI finding.
| Patient | T1 SI | T2 SI | T1 enhancement | Optic nerve compression | Initial volume (cm3) | Last volume (cm3) | Volume change (%)* |
|---|---|---|---|---|---|---|---|
| 1 | High | Iso | No | Compression | 1.57 | 0.68 | 57 |
| 2 | High | Low | No | No | 0.32 | 0.21 | 34 |
| 3 | High | Low | No | No | 0.05 | 0 | 99 |
| 4 | High | Low | No | Touch | 0.73 | 0.18 | 76 |
| 5 | Iso | Iso | No | Touch | 1.65 | 0.04 | 97 |
| 6 | High | Low | No | No | 0.55 | 0.26 | 53 |
| 7 | Iso | Low | Posterior small portion | Touch | 1.41 | 0.08 | 94 |
| 8 | Iso | Iso | Rim enhancement | Touch | 1.82 | 0.53 | 71 |
| 9 | Iso | Iso | Heterogeneous | Touch | 1.20 | 0.06 | 95 |
| 10 | Iso | High | No | Compression | 2.65 | 0.15 | 94 |
| 11 | High | High | Faint enhancement | Touch | 3.23 | 0.41 | 87 |
| 12 | Iso | High | No | Touch | 1.16 | 0.01 | 99 |
| 13 | High | Iso | No | Compression | 1.63 | 0.57 | 65 |
| 14 | Iso | Low | No | No | 0.14 | 0.04 | 70 |
*it means percentage of decrease in tumor volume compare to initial tumor volume. SI, signal intensity