Dose 2016

Performance testing Small field dose calculation accuracy for general purpose TPS

Vendor: Beam modeling- dose calculation algorithms

User: Configuration data (measurements); tunning of conf. parameters

Measurements

Patient cases

Dose distribution

TPS

Treatment plans Rapid Arc IMRT Eclipse PTV (0.3-7 cm 3 )

Point measurement

2D measurements

Single partial arc (110º-250º) 2Gy at isocenter Maximum dose rate:600MU/min

Dose differences and Gamma analysis (3%-2mm)

Optimisation and dose calculation using different:

DLG (dosimetric leaf gap) LT (leaf transmission) Spot size parameter (0, 0.5, 1, 2 mm) Acuros XB and AAA .

Flogliata et al. Med Phys 35(8) 2008

Utretch 2016