DIRECT USE OF CT NUMBERS IN RADIOTHERAPY DOSAGE CALCULATIONS FOR INHOMOGENEOUS-MEDIA
DIRECT USE OF CT NUMBERS IN RADIOTHERAPY DOSAGE CALCULATIONS FOR INHOMOGENEOUS-MEDIA
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DOI：
10.1088/0031-9155/24/4/011
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发表时间：
1979-01-01
影响因子：
3.5
通讯作者：
CASSELL, KJ
中科院分区：
文献类型：
--
作者：
PARKER, RP;HOBDAY, PA;CASSELL, KJ
描述了CT扫描中固有的定量解剖数据可以直接用于治疗计划的技术。在RAD-8系统中使用的校正算法，基于有效路径长度，已扩展到逐像素的方法。通过根据电子密度（电子cm-3）校准X射线透射CT扫描仪，可以自动进行不均匀性校正。
Techniques by which the quantitative anatomical data inherent in a CT scan can be directly used in treatment planning are described. The correction algorithms used in the RAD-8 system, based on an effective path length, have been extended to a pixel-by-pixel approach. By calibrating the X-ray transmission CT scanner in terms of electron densities (electrons cm-3) inhomogeneity corrections may be made automatically.