With(simultaneous integrated boost,SIB) technique,PTV70 and PTV66 can achieve an assured dose, more attention must be paid to low dose areas in the PTV60 and PTV50.4.

• 在同期整合推量照射(simultaneous integrated boost；SIB)技术中；PTV70和PTV66能得到确定的剂量；但是要注意PTV60和PTV50.；4的低剂量区。