Application of Volume Intensity-modulated Radiotherapy(VMRT) to Nasopharyngeal Carcinoma

Intensity-modulated radiation therapy(IMRT) has recently gained popularity in the treatment for nasopharyngeal carcinoma (NPC). This article compares the application of IMRT and volume intensity-modulated radiotherapy(VMRT) to NPC, and compares their differences of dose distribution,biological effects and clinical significance due to quite difference of single irradiation time,in order to explore the role of VMRT in treatment for nasopharyngeal carcinoma.