Does 5 + 5 Equal Better Radiation Treatment Plans in Head and Neck Cancers?
Purpose: Accurate contouring in head and neck cancer (HNC) is critical.International consensus guidelines recommend the 5 + 5 mm rule for expansions around the primary tumor, wherein high- and low-dose clinical target volumes (CTV-P1 and CTV-P2, respectively) are created using successive 5 mm expansions on the gross tumor volume.To our knowledge, t