Introduction to Conformal Radiation Therapy-A Historical Overview
@@ Department of radiation Oncology,University of Maryland School of Medicine USA The war against cancer is a war not yet won. Over the years we have made significant progress in cancer treatments. However,viewing from the end point-the survival rate,the results remain very disappointing. Of the all patients diagnosed with cancer in the world,approximately 45% will eventually die as a result of recurrence and/or metastasis. Radiation therapy is one of the major modalities for cancer treatment,it had contributed significantly in saving the lives of patients inflicted with cancer and improving their quality of life. However,it also has its share in the disappointiong statistics with all other modalities. Over the last 5 decades,radiation therapy has gone through many advances both in equipment and in treatment methods. The impact,however,falls short as compared with the expectations. It is possible that the efficacy of radiation therapy has reached its limits. It is also possible that what we have done in the past has some major shortcomings in its methodology,which may require revolutionary improvement. Conformal radiation therapy as a new treatment technique provides us some hope in answering these key questions.
radiation therapy、radiation Oncology、quality of life、as a result of、survival rate、in equipment、the world
5
R73(肿瘤学)
2006-01-12（万方平台首次上网日期，不代表论文的发表时间）
241-242
