Figure 2From: Dose calculation of Acuros XB and Anisotropic Analytical Algorithm in lung stereotactic body radiotherapy treatment with flattening filter free beams and the potential role of calculation grid size Mean DVH of PTV and OARs. (A) 6XFFF beam with 2.5 mm CGS, (B) 6XFFF beam with 1 mm CGS, (C) 10XFFF beam with 2.5 mm CGS and (D) 10XFFF beam with 1 mm CGS.Back to article page