Table 1.
Concordance analysis protocol for planned and measured dose matrices. DD is the accepted dose difference. DTA is the distance difference accepted. Mode corresponds to the dose normalization mode. TH corresponds to the thresholding pixel criterion. 10% Dmax and 20% Dmax correspond to a thresholding of all the pixels, with a dose greater than or equal to 10% and 20% of the maximum dose of the plan. MLC CIAO + 1 cm correspond to a threshold of all the pixels included in Complete Irradiated Area Outline (CIAO) of the MLC incremented by 1 cm. PR is the minimum success criterion on the pixel percentage with a Gamma index less than one for the plan to be considered compliant
Protocol DD/DTA/Mode | Process | TH | PR |
---|---|---|---|
3%/3 mm/Global | AC | 10% Dmax | 95% |
PDIP | MLC CIAO +1 cm | ||
3%/3 mm/Local | AC | 20% Dmax | 95% |
PDIP | MLC CIAO +1 cm | ||
2%/2 mm/Global | AC | 10% Dmax | 90% |
PDIP | MLC CIAO +1 cm |