Preliminary Clinical Study of the Effect of Stereotactic Radiotherapy Boost Following Conventional Radiotherapy on Local Control Rate of Primary Nasopharyngeal Carcinoma

Objective To study the effect of stereotactic radiotherapy boost on the local contral rate of primary nasopharyngeal carcinoma. Methods 16 nasopharyngeal carcinoma patients were treated with SRT as boost to the primary lesions following external radiotherapy.The boost doses were 12～25Gy in 3～5 fractions. Results During the 6～24 months follow up period 1 patient died from hemorrhage of nasopharynx and 1 patient lost follow up.the nasopharyngeal contral rate was 14/15.All the patients had acute radiation reacti...