Impact of plan parameters on the dosimetric accuracy of volumetric modulated arc therapy.

  title={Impact of plan parameters on the dosimetric accuracy of volumetric modulated arc therapy.},
  author={Laura Masi and Raffaela Doro and Virginia Favuzza and Samantha Cipressi and Lorenzo Livi},
  journal={Medical physics},
  volume={40 7},
PURPOSE To evaluate the effect of plan parameters on volumetric modulated arc therapy (VMAT) dosimetric accuracy, together with the possibility of scoring plan complexity. METHODS 142 clinical VMAT plans initially optimized using a 4° control point (CP) separation were evaluated. All plans were delivered by a 6 MV Linac to a biplanar diode array for patient-specific quality assurance (QA). Local Γ index analysis (3%, 3 mm and 2%, 2 mm) enabled the comparison between delivered and calculated… CONTINUE READING


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