Figure 6.

Conformal index CI for each patient in the coplanar field CF (grey) and non coplanar field NCF (black) technique. CI is defined as follows: CI = (TV/V_PTV) × (TV/V_95%) TV: Treated Volume is the volume of PTV1 receiving the prescribed dose (95%); V_PTV is the volume of PTV; V_95% is the volume enclosed in the isodose 95%