With the development of radiotherapy techniques, the efficacy of radiotherapy for liver tumors has been improved, and radiotherapy can be considered as an alternative treatment for patients who are not suitable for surgery.The progress in liver tumor radiotherapy reported in the 55th annual meeting of the American Society for Therapeutic Radiology and Oncology (ASTRO) in 2013, particularly the efficacy and safety of stereotactic body radiation therapy for liver tumors, is reviewed.In the future, radiotherapy may be increasingly used as an effective method in the treatment of liver tumors.The main studies reported at the meeting are sorted as follows in this article.
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