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食管癌是我国最常见的消化道肿瘤之一,而传统上对肿瘤的放射剂量往往难以达到有效剂量,严重影响放射治疗的效果[1]。三维适形放射治疗(3DCRT)可以在不超过邻近器官最大受量的同时,大大增加靶器官治疗照射剂量,从而延长患者生存时间[2]。目前,临床上对3DCRT的照射模式并无统一标准,不同分割平面究竟对放射剂量有无影响并无定论。我们选取临床上常用的4个平面,探讨3DCRT的最佳
Esophageal cancer is one of the most common gastrointestinal tumors in our country. Traditionally, radiation dose to tumors is often difficult to reach effective dose, which has a serious impact on radiotherapy [1]. Three-dimensional conformal radiotherapy (3DCRT) can significantly increase the dose of target organ treatment irradiation and prolong the survival time of patients without exceeding the maximum amount of adjacent organs [2]. At present, there is no uniform standard for the irradiation mode of 3DCRT in clinic, and it is inconclusive whether different segmentation planes affect the radiation dose. We select the four commonly used in clinical plane, to explore the best 3DCRT