Table 2 Transmitted dose through tissue substitute materials, measured and simulated with manufacturer’s data (Gammex) and the ρZeff tissue assignment method. EBT3 measurement uncertainty was 3.2% [10]
From: A new tissue segmentation method to calculate 3D dose in small animal radiation therapy
Manufacturer’s data | ρZeff based tissue assignation method | ||||||||
|---|---|---|---|---|---|---|---|---|---|
Tissue substitutes | EBT3 (Gy) | MC dose (Gy) | Stat. Uncert. | MC/EBT3 relative difference | MC/EBT3 absolute difference (Gy) | MC Dose (Gy) | Stat. Uncert. | MC/EBT3 relative difference | MC/EBT3 absolute difference (Gy) |
CT solid water | 4.58 | 4.61 | 1.4% | 0.5% | 0.03 | 4.51 | 1.3% | −1.5% | −0.07 |
Inner bone | 3.44 | 3.50 | 1.5% | 1.7% | 0.06 | 3.41 | 1.5% | −1.0% | −0.03 |
Cortical bone | 1.40 | 1.38 | 2.0% | −1.8% | −0.02 | 1.42 | 2.1% | 1.3% | 0.02 |
CB2 50% | 1.99 | 1.93 | 1.8% | −3.0% | −0.06 | 2.02 | 1.8% | 1.5% | 0.03 |
CB2 30% | 2.73 | 2.72 | 1.6% | −0.4% | −0.01 | 2.80 | 1.6% | 2.6% | 0.07 |
Breast | 4.93 | 4.91 | 1.3% | −0.4% | −0.02 | 4.75 | 1.3% | −3.6% | −0.18 |
B200-bone | 3.41 | 3.49 | 1.5% | 2.4% | 0.08 | 3.45 | 1.5% | 1.1% | 0.04 |
Adipose | 5.29 | 5.35 | 1.3% | 1.3% | 0.07 | 5.29 | 1.3% | 0.1% | 0.01 |