As an advanced conformal therapy, Intensity-modulated radiotherapy (IMRT) can increase the gain ratio of radiotherapy and improve the local control of the tumor.
调强放疗(IMRT)是一种先进的适形放射治疗方法，能提高放射治疗的治疗增益比，促进肿瘤的局部控制。
Objective:To study the clinical application of CT-based simulation and evaluate the its value in the treatment planning of intensity-modulated radiotherapy(IMRT).
前言： 目的：通过CT模拟定位技术的临床应用研究，评价其在调强放疗计划设计中的作用。
Objective To study and develop treatment planning system of intensity modulated radiotherapy(IMRT).
目的研制开发调强放射治疗逆向计划系统。
Objective To establish a standard program of the dose delivery for every individual patient and to study the criterion of quality assurance in intensity modulated radiotherapy (IMRT).
目的建立个体化调强适形放射治疗（IMRT）计划剂量验证的标准方法，探索调强剂量质量保证实施规范。
Proton therapy consists of Conformal Proton Radiotherapy, Intensity-Modulated Proton therapy, Stereotactic Radiotherapy, Proton Scanning Radiation and et al.
目前质子治疗的分类主要有质子适形及调强放疗、质子立体放射治疗、质子扫描照射等。
Objective: To examine and analyze the set-up errors for patients with three dimensional conformal and Intensity Modulated Radiotherapy to calculate CTV referential safety margins of PTV.
目的：测定和分析三维适形及调强放疗的摆位误差，并依此计算CTV外扩PTV边界的大小。
Objective:To evaluate the exact of target region by MRI and the IMRT clinical efficacy, acute toxicities of intensity modulated radiotherapy for nasopharyngeal cancer patients.
目的：评价用MRI对鼻咽癌进行靶区勾画的准确性，调强放疗（IMRT）的早期临床结果，并观察放射急性反应。
Objective:To evaluate the exact of target region by MRI and the IMRT clinical efficacy, acute toxicities of intensity modulated radiotherapy for nasopharyngeal cancer patients.
目的：评价用MRI对鼻咽癌进行靶区勾画的准确性，调强放疗（IMRT）的早期临床结果，并观察放射急性反应。
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