EFFECT OF ANISOTROPY CORRECTIONS ON THE DYNAMIC DOSE CALCULATIONS IN HIGH-DOSE-RATE (HDR) BRACHYTHERAPY

被引：3
|
作者：
CHO, SH
MULLERRUNKEL, R
机构：
[1] Radiat. Oncology Center, St. Margaret Mercy Healthcare Centers, Hammond, IN
来源：
PHYSICS IN MEDICINE AND BIOLOGY | 1994年 / 39卷 / 07期
关键词：
D O I：
10.1088/0031-9155/39/7/009
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
An analytic formalism utilizing a convolution technique is presented for the incorporation of anisotropy corrections into the dynamic (or transit) dose calculations in high dose rate (HDR) brachytherapy. A simple numerical implementation of the suggested formalism is also presented. Two calculational examples are provided in order to show some effects of anisotropy corrections on the dynamic dose calculations. Based on the results from these examples and published literature, the absence of anisotropy corrections in the dynamic dose calculations could result in a dosimetric error up to the order of 0.1 Gy during the full course of HDR brachytherapy treatments depending on fractionation and geometrical arrangement. Therefore, the incorporation of anisotropy corrections into dynamic dose calculations could eliminate this kind of error in HDR brachytherapy.
引用
收藏
页码：1181 / 1188
页数：8
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