TABLE 1.
Disease site, modality, fractionation scheme, and comparison of the RadCalc percentage difference of the ViewRay plan dose and the version 7.1.4.0 calculated dose
| Methods of verifying calculated dose | |||
|---|---|---|---|
| Site | Modality | Fractionation scheme | RadCalc % difference |
| Abdomen | SBRT | 700 cGy × 5 | 2.4% |
| Abdomen a | SBRT | 1000 cGy × 5 | 3.8% (6.1% a ) |
| Breast | SBRT | 850 cGy × 3 | 2.1% |
| Breast | SBRT | 850 cGy × 3 | –0.7% |
| Chestwall | IMRT | 200 cGy × 30 | –4.2% |
| Chestwall | SBRT | 700 cGy × 5 | 1.2% |
| Liver | SBRT | 1000 cGy × 5 | –0.6% |
| Liver | SBRT | 1000 cGy × 5 | –0.5% |
| Liver | SBRT | 1000 cGy × 5 | –1.1% |
| Liver | SBRT | 1000 cGy × 5 | 3.9% |
| Liver | SBRT | 1000 cGy × 5 | –2.6% |
| Liver | SBRT | 1000 cGy × 5 | 4.0% |
| Liver | SBRT | 1000 cGy × 5 | 0.4% |
| Lung | IMRT | 500 cGy × 12 | –1.0% |
| Lung a | IMRT | 400 cGy × 15 | –0.3% (7.6% a ) |
| Lung a | IMRT | 400 cGy × 15 | –2.5% (11.2% a ) |
| Pancreas | SBRT | 1000 cGy × 5 | 1.1% |
| Pancreas | SBRT | 1000 cGy × 5 | –3.1% |
| Pancreas | SBRT | 1000 cGy × 5 | 3.0% |
| Pancreas | SBRT | 1000 cGy × 5 | –1.2% |
| Pancreas | SBRT | 1000 cGy × 5 | 2.7% |
| Pancreas | SBRT | 1000 cGy × 5 | 2.9% |
| Pancreas a | SBRT | 1000 cGy × 5 | –3.8% (5.1% a ) |
| Pancreas | SBRT | 1000 cGy × 5 | –4.3% |
| Periportal | SBRT | 700 cGy × 5 | 0.5% |
a
Bold treatment site represents significant heterogeneity within the beam path.
Abbreviation: SBRT, Stereotactic body radiation thearpy.