An investigation on the dosimetric impact of hip prosthesis in radiotherapy

	An investigation on the dosimetric impact of hip prosthesis in radiotherapy
刊名	NUCLEAR SCIENCE AND TECHNIQUES
	2016
卷号	27
关键词	PROSTATE-CANCER PATIENTS THERAPY Medical linac Hip prosthesis Ceramic Dose perturbation Monte Carlo method
ISSN号	1001-8042
其他题名	An investigation on the dosimetric impact of hip prosthesis in radiotherapy
英文摘要	The objectives of this study are to evaluate the dosimetric impact of hip prosthesis using ELEKTA linac X-rays and compare the dose perturbations of metallic and nonmetallic hip prostheses. The local dose distributions of typical hip prostheses were calculated for 4, 8, and 15 MV beams by Geant4. Three prosthesis materials were selected in calculation to reveal the relation between material type and local dose perturbations of prostheses. Furthermore, the effect of nominal energy on prosthesis perturbation was also discussed and analyzed. Taking the calculated dose to the hip joint as reference, considerable differences were observed between prostheses and hip joints. In the prosthesis shadow region, the relative dose decreasing was up to 36, 21, and 16 % for the Co-Cr-Mo alloy, titanium alloy, and ceramic prostheses, respectively. In backscattering region, the relative dose increasing was about 1-7 %. Overall, the results show that the dose perturbation effect of prostheses was mainly determined by material type, nominal energy, and density. Among these typical hip prostheses, ceramic prosthesis introduces the lowest dose perturbations.
资助项目	[Heilongjiang Province Natural Science Foundation] ; [Education Department of Heilongjiang Province] ; [post-doctoral research start-up funds of Heilongjiang Province]
语种	英语
CSCD记录号	CSCD:5661470
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/69260]
专题	中国科学院合肥物质科学研究院
推荐引用方式 GB/T 7714	. An investigation on the dosimetric impact of hip prosthesis in radiotherapy[J]. NUCLEAR SCIENCE AND TECHNIQUES,2016,27.
APA	(2016).An investigation on the dosimetric impact of hip prosthesis in radiotherapy.NUCLEAR SCIENCE AND TECHNIQUES,27.
MLA	"An investigation on the dosimetric impact of hip prosthesis in radiotherapy".NUCLEAR SCIENCE AND TECHNIQUES 27(2016).