CONE-BEAM CT FOR RADIOTHERAPY APPLICATIONS
CONE-BEAM CT FOR RADIOTHERAPY APPLICATIONS
复制标题
DOI：
10.1088/0031-9155/40/11/007
复制
发表时间：
1995-11-01
影响因子：
3.5
通讯作者：
GRIFFIN, TW
中科院分区：
文献类型：
--
作者：
CHO, PS;JOHNSON, RH;GRIFFIN, TW
由于缺乏能够覆盖整个身体宽度的二维电子 X 射线探测器，锥形束断层扫描的临床实施受到阻碍。我们在开发用于放射治疗的锥束 CT 系统时遇到了探测器尺寸过小的问题。为了缓解这个问题，我们开发了一种算法，允许使用给定尺寸的探测器对增加的重建体积进行成像。我们使用配置有数字荧光检查装置的放射治疗模拟器描述了该算法并报告了其实施情况。
Clinical implementation of cone-beam tomography has been hampered by the lack of two-dimensional electronic x-ray detectors that can encompass the full width of the body. We encountered the undersized detector problem in our development of a cone-beam CT system for radiotherapy applications. In order to mitigate the problem, we developed an algorithm which permits an increased reconstruction volume to be imaged using a detector of a given size. We describe the algorithm and report on its implementation using a radiotherapy simulator configured with a digital fluorography unit.