Organs at risk, at low doses V5Gy, V10Gy VMAT plans do not avoid good doses by 3D-CRT plans: V5Gy for left lung (78.8 ± 4.6% compared to 55.37 ± 4.38%) and heart (77.15 ± 9.52% compared to 19.15 ± 7.93%) (p <0.001).