Table 6.
Comparison in passing rates (%) between TPS‐calculated and MatriXX dose distributions without and with “central correction” or “entire correction” for IMRT (iPlan MC) and VMAT (Eclipse AAA) plans. Gamma evaluation was performed with 2% dose difference and 2 mm DTA, and 3% dose difference and 3 mm DTA.
Angular Correction | ||||||
---|---|---|---|---|---|---|
No Correction | Central Correction | Entire Correction | ||||
Plan No. | 2%/2 mm | 3%/3 mm | 2%/2 mm | 3%/3 mm | 2%/2 mm | 3%/3 mm |
1 (VMAT) | 90.7 | 97.7 | 91.3 | 98.3 | 91.5 | 98.6 |
2 (VMAT) | 92.9 | 99.1 | 93.4 | 99.1 | 93.9 | 99.1 |
3 (IMRT) | 87.9 | 97.9 | 94.8 | 99.8 | 94.9 | 99.8 |
4 (IMRT) | 65.8 | 87.2 | 87.0 | 99.2 | 87.1 | 99.2 |
5 (IMRT) | 60.4 | 77.5 | 86.9 | 94.6 | 87.7 | 95.4 |
6 (IMRT) | 82.8 | 99.2 | 95.1 | 99.6 | 95.6 | 99.6 |