Table 3.
Summary of dose volume histogram parameters of patients with acute or late grade ≥ 3 toxicity
| Patient | GTV (mL) | V30_retina (%) | V30_cba) (%) | V30_macb) (%) | V30_ODc) (%) | Toxicity |
|---|---|---|---|---|---|---|
| 1 | 1.95 | 50.80 | 45.00 | 0.00 | 30.00 | Cataract G4, NVG G4 |
| 2 | 0.74 | 33.40 | 39.00 | 0.00 | 0.00 | Vitreous hemorrhage G4 |
| 3 | 1.41 | 53.20 | 47.10 | 54.70 | 71.26 | Posterior synechia G3 |
| 4 | 1.20 | 49.00 | 38.80 | 100.00 | 57.20 | Posterior synechia G3 |
| With grade ≥ 3 toxicity (mean) | 1.32 | 46.60 | 42.48 | 38.68 | 39.62 | |
| Without grade ≥ 3 toxicity (mean) | 0.90 | 38.28 | 31.65 | 49.45 | 55.72 | |
| p-valued) | 0.203 | 0.167 | 0.006 | 0.703 | 0.434 |
GTV, gross tumor volume; NVG, neovascular glaucoma.
a)
Volume of ciliary body receiving 30 cobalt gray equivalent (CGE),
b)
Volume of mac receiving 30 CGE,
c)
Volume of optic disc receiving 30 CGE,
d)
By independent t test.