| 图像引导的放射治疗技术 |
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| 引用本文： | 杨克柽,林意群.图像引导的放射治疗技术[J].国外医学(肿瘤学分册),2006(11). |
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| 作者姓名： | 杨克柽 林意群 |
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| 作者单位： | 南方医科大学生物医学工程学院数字化医疗设备应用质量检测中心，南方医科大学生物医学工程学院数字化医疗设备应用质量检测中心 |
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| 摘 要： | 胸腹部肿瘤因呼吸等生理运动处于不断运动的状态,影响成像、治疗计划和治疗过程的精确度。图像引导放疗(IGRT)技术有望解决运动肿瘤的精确治疗问题,它主要分为3个研究方向。其中,呼吸门控放疗开展较早,已经进入临床应用;集成放疗成像系统把定位和治疗设备合二为一,实现常规模拟定位、锥形束CT和实时成像等功能;射束同步放疗技术以四维CT成像技术为基础,控制动态多叶光栅使射束随着肿瘤的运动而不断运动,是最理想的放疗实现模式。
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| 关 键 词： | 放射疗法 计算机辅助 |
Image-guided radiotherapy |
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| YANG Ke-cheng. College of Biomedical Engineering,Southern Medical U- niversity,Guangzhou ,China.Image-guided radiotherapy[J].Foreign Medical Sciences (Cancer Section),2006(11). |
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| Authors: | YANG Ke-cheng College of Biomedical Engineering Southern Medical U- niversity Guangzhou China |
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| Institution: | YANG Ke-cheng. College of Biomedical Engineering,Southern Medical U- niversity,Guangzhou 510515,China |
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| Abstract: | Thoracic and abdominal tumors move appreciably due to physiological activities such as respiration, and the movements can influence the accuracy of imaging, treatment planning and deliver-y. Image- guided radiotherapy (IGRT) offers the potential for precise dose delivery to a moving tumor. IGRT includes three sub-fields: respiration-gated radiotherapy is developed earlier and has been used in clinical application for many years; integrated radiotherapy imaging system integrates simulator to linac, can realize the conventional simulation,cone-beam CT and real-time imaging;synchronized moving aperture radiation therapy is the most ideal solution, which based on 4-dimensional CT imaging, synchronize the moving radiation beam aperture formed by a dynamic multi-leaf collimator with the tumors movements. |
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| Keywords: | Radiotherapy computer- assisted |
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