On the Feasibility of Verification of 3D Dosimetry Near Brachytherapy Sources Using PRESAGE/Optical-CT.
On the Feasibility of Verification of 3D Dosimetry Near Brachytherapy Sources Using PRESAGE/Optical-CT.
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DOI：
10.1088/1742-6596/250/1/012091
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发表时间：
2010-12-07
期刊：
影响因子：
--
通讯作者：
Oldham M
中科院分区：
文献类型：
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作者：
Pierquet M;Craciunescu O;Steffey B;Song H;Oldham M
The feasibility of using the PRESAGE/Optical-CT system for 3D dosimetry verification around a brachytherapy source is investigated. Brachytherapy dose distributions were obtained by irradiation of cylindrical PRESAGE volumes 6cm in diameter by 8cm height with a GammaMed 12i Ir-192 HDR unit (Varian Medical Systems). A narrow channel on the central axis was created by setting a steel catheter in the Presage during manufacture, enabling measurements close to the source (~3mm). Comparison of dose line profiles shows good agreement between PRESAGE and verified calculated dose calculation, in both high and low dose regions. The PRESAGE/Optical-CT shows good potential in verification of 3D dose distributions around brachytherapy sources.
