公开(公告)号：US07142635B2

公开(公告)日：2006-11-28

申请号：US11102083

申请日：2005-04-08

申请人： Srijit Kamath ,  Sartaj Sahni ,  Jonathan Gang Li ,  Jatinder Palta ,  Sanjay Ranka

发明人： Srijit Kamath ,  Sartaj Sahni ,  Jonathan Gang Li ,  Jatinder Palta ,  Sanjay Ranka

IPC分类号： A61N5/10

CPC分类号： A61N5/1042 ,  A61N5/1036

摘要： A method of delivering intensity modulated radiation therapy (IMRT) is disclosed. An intensity profile for the treatment of a patient is provided which spans a prescribed field width and includes a discrete profile having intensity values at each of a plurality of sample points bounded by the prescribed width. The prescribed width is compared to a maximum field width provided by the radiation treatment system. The intensity profile is split into a plurality of intensity profile portions, each having respective widths less than the maximum width if the prescribed width is greater than the maximum width. The prescribed field is also divided into a plurality of different profile portion split arrangements. A monitor unit (MU) efficiency is calculated for each of the arrangements. One of the arrangements is selected for delivery by the system using a leaf sequencing method.

摘要翻译： 公开了一种递送强度调制放射治疗（IMRT）的方法。 提供了用于治疗患者的强度分布，其跨越规定的场宽度并且包括在由规定宽度限定的多个采样点中的每一个处具有强度值的离散轮廓。 将规定的宽度与辐射处理系统提供的最大场宽进行比较。 如果规定的宽度大于最大宽度，则强度分布被分成多个强度分布部分，每个强度分布部分各自具有小于最大宽度的宽度。 规定的场也被分成多个不同的轮廓部分割装置。 针对每个布置计算监视器单元（MU）的效率。 选择其中一种安排用于通过系统使用叶片测序方法递送。