Fig. 2From: Evaluation of optimal treatment planning for radiotherapy of synchronous bilateral breast cancer including regional lymph node irradiationComparison of dose volume for the planning target volume of the three radiotherapy plans. Histograms are shown for the (a) whole lung and (b) heart. The solid line represents the VMAT-only plan, the dotted line represents the primary hybrid plan, and the dashed line represents the modified hybrid plan (the two hybrid plans show almost the same dose distribution to the whole lung and heart)Back to article page