A Comparison of Treatment Plans for Recurrent Nasopharyngeal Carcinoma
نویسنده
چکیده
The purpose of this study is to assess intensitymodulated radiotherapy (IMRT) treatment plans with three-dimensional conformal radiotherapy (3DCRT) plans for different sites of recurrent nasopharyngeal carcinoma. We treated 3 cases of different sites of recurrent nasopharyngeal carcinoma with IMRT techniques and 3D-CRT technique. These different plans were compared with respect to dose conformity, dose-volume histogram, dose to the sensitive normal tissue structures, and ease of treatment delivery. The planned dose distributions were more conformal to the sensitive normal tissue structures by IMRT plans in 3 different sites. Our experience concludes IMRT techniques provide improved tumor target coverage with significantly better sparing of sensitive normal tissue structures in the treatment of recurrent nasopharyngeal carcinoma. With improvement of the delivery efficiency, IMRT should provide the optimal treatment for recurrent nasopharyngeal carcinoma.
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