Preliminary experience of helical tomotherapy for locally advanced pancreatic cancer

来源 :World Journal of Gastroenterology | 被引量 : 0次 | 上传用户:zangming
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Radiotherapy for locally advanced pancreatic cancer is technically difficult and frequently associated with high-grade digestive toxicity.Helical tomotherapy(HT)is a new irradiation modality that combines megavoltage computed tomography imaging for patient positioning with intensity-modulated fan-beam radiotherapy.Its recent availability opens new fields of exploration for pancreatic radiotherapy as a result of its ability to tailor very well-defined dose distributions around the target volumes.Here,we report the use of HT in two patients with locally advanced pancreatic cancer. Doses to the bowel,kidneys and liver were reduced significantly,which allowed for excellent treatment tolerance without any high-grade adverse effects in either patient. Radiotherapy for locally advanced pancreatic cancer is technically difficult and frequently associated with high-grade digestive toxicity. Helical tomotherapy (HT) is a new irradiation modality that combines megavoltage computed tomography imaging for patient positioning with intensity-modulated fan-beam radiotherapy. Its recent opens new fields of exploration for pancreatic radiotherapy as a result of its ability to tailor very well-defined dose distributions around the target volume. Here, we report the use of HT in two patients with locally advanced pancreatic cancer. Doses to the bowel, kidneys and liver were reduced significantly, which allowed for excellent treatment tolerance without any high-grade adverse effects in either patient.
其他文献
作者认为 ,一个人没有很好的背功 ,就不可能有很好的口头表达能力和书面文字水平。本文重点论述了背功是指高讲演水平、口头表达能力的基础 ,不抓住这个“牛鼻子” ,要提高自
文章对申小龙的文风进行了批评。对他的《文化语言学论纲———申小龙语言文化精论》进行了评论 ,认为此书新名词繁多 ,概念混乱。关于汉语的人文性、汉语句子的铺排律、汉字
言语交际中处处有逻辑,言语交际中的逻辑现象是逻辑学的研究对象。语言逻辑是自然语言及其使用的逻辑,而言语交际的实质就是人们对自然语言的具体使用,那么,语言逻辑研究的也就是
根据问卷调查,本文就如何才能把师专生培养成能适应21世纪快速发展的人才,他们应该具有哪些知识、能力和素质,进行了详细的论述.
目的:了解“686项目”示范市(州)2011年抗精神病药物采购种类及费用在各地配置使用情况,比较抗精神病药物使用的地域性差异。方法:对2011年“686项目”示范市(州)药品采购资
目的 研究Wingspan支架成形术治疗症状性颅内动脉狭窄的安全性、可行性和中短期疗效.方法 113例症状性、颅内动脉粥样硬化性严重狭窄患者接受了Wingspan支架成形术,统计分析
Colorectal cancer(CRC)is the second most frequent malignant disease in Europe.Every year,412 000people are diagnosed with this condition,and 207 000patients die
采用单点脉冲冲击法研究锚固螺杆-螺母系统在施加大小不同力矩(标准力矩为800 N.m)下振动特征的变化情况.通过获取螺杆-螺母系统在不同力矩下的振动信号,并运用单模态识别法
针对硬件设计的复杂性和自动化效率低等问题,提出了一种基于时钟处理的硬件设计模式.该模式充分考虑了软、硬件模式设计的互通性,并结合元编程技术,将成熟的软件设计模式的思
目的 探讨改良第一掌背动脉岛状皮瓣修复拇指远端软组织缺损的成活优良率和感觉重建的疗效.方法 2004年3月至2007年10月,应用第一掌背动脉(the first dorsal metacarpal arte