2Dai JR, Hu YM. Implement of image guided radiation therapy[J]. Chin J Radiat Oncol,2006,15 : 13.
3Kam MK,Chau RM,Suen J,et al. Intensity-modulated radiotherapy in nasopharyngeal carcinoma: dosimetric ad vantage over conventional plans and feasibility of dose escalation[J]. Int J Radiat Oncol Biol Phys, 2003,56:145.
4Fang FM, Tsai WL, Chen HC, et al. Intensity-modulated or conformal radiotherapy improves the quality of life of patients with nasopharyngeal carcinoma: comparison of four radiotherapy techniques[J]. Cancer,2007,109 : 313.
5Dawson LA,Jaffray DA. Advances in image guided radioation therapy[J].J Clin Oncl, 2007,25 : 938.
6Zeidan OA, Langen KM, Meeks SL, et al. Evaluation of image-guidance protocols in the treatment of head- and- necks cancers[J]. Int J Radiat Oncol Biol Phys, 2007,67 : 670.
7Lee N, Mechalakos J, Puri DR, et al. Choosing an intensity-modulated radiation therapy technique in the treatment of head-and-neck cancer[J]. Int J Radiat Oncol Biol Phys, 2007,68:1299.
8Han CH ,Chen YJ, Liu A, et al. Actual dose variation of paritid glands and spinal cord for nasopharyngeal cancer patiens during radiotherapy[J].Int J Radiat Oncol Biol Phys,2007,64:911.
9Silanpaa J, Chang J, Mageras G, et al. Developments in megavohage CBCT with an amorphous silicon EPID: reduction of exposure and synchronization with respiratory gating[J].Med Phys,2005,32:819.
10Yah D, Vicini F, Wrong J, et al. Adaptive radiation therapy[J]. Phys Med Biol ,1997,42:4123.