适形调强放射治疗(IMRT)是“精确定位、精确计划、精确治疗”的体现,要求在整个治疗过程做到严格的质量保证,对患者选择、定位和治疗的摆位、照射剂量的验证均提出了更高的要求,包括电子射野影像系统、兆伏级锥形束CT、超声等仪器在质量保证过程中的准确应用,并对相对剂量和绝对剂量验证中各种方法有严格的选择。 IMRT is the embodiment of “precise positioning, precise planning and precise treatment”, which requires strict quality assurance throughout the treatment process, positioning of the patient, positioning and treatment, irradiation dose The higher requirements are put forward, including the accurate application of electronic field imaging system, mega-volt cone beam CT, ultrasound and other instruments in the quality assurance process, and various methods in the relative dose and absolute dose verification Strict choice.