Experimental measurement of radiation dose in a dedicated breast CT system
文献类型：期刊论文
| 作者 | Shen SW(申善威); Wang YF(王燕芳) ; Shu H(舒航); Shen, SW; Wang, YF; Shu, H; Tang, X; Wei, CF; Song, YS; Shi, RJ
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| 刊名 | CHINESE PHYSICS C
 |
| 出版日期 | 2014 |
| 卷号 | 38期号:3页码:38201 |
| 关键词 | dedicated breast CT radiation dose experimental measurement |
| 英文摘要 | Radiation dose is an important performance indicator of a dedicated breast CT (DBCT). In this paper, the method of putting thermoluminescent dosimeters (TLD) into a breast shaped PMMA phantom to study the dose distribution in breasts was improved by using smaller TLDs and a new half-ellipsoid PMMA phantom. Then the weighted CT dose index (CTDIw) was introduced to average glandular assessment in DBCT for the first time and two measurement modes were proposed for different sizes of breasts. The dose deviations caused by using cylindrical phantoms were simulated using the Monte Carlo method and a set of correction factors were calculated. The results of the confirmatory measurement with a cylindrical phantom (11 cm/8 cm) show that CTDIw gives a relatively conservative overestimate of the average glandular dose comparing to the results of Monte Carlo simulation and TLDs measurement. But with better practicability and stability, the CTDIw is suitable for dose evaluations in daily clinical practice. Both of the TLDs and CTDIw measurements demonstrate that the radiation dose of our DBCT system is lower than conventional two-view mammography. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| WOS记录号 | WOS:000332920700017 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/224916]  |
| 专题 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Shen SW,Wang YF,Shu H,et al. Experimental measurement of radiation dose in a dedicated breast CT system[J]. CHINESE PHYSICS C,2014,38(3):38201. |
| APA | 申善威.,王燕芳.,舒航.,Shen, SW.,Wang, YF.,...&魏龙.(2014).Experimental measurement of radiation dose in a dedicated breast CT system.CHINESE PHYSICS C,38(3),38201. |
| MLA | 申善威,et al."Experimental measurement of radiation dose in a dedicated breast CT system".CHINESE PHYSICS C 38.3(2014):38201. |
入库方式： OAI收割
来源：高能物理研究所
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