中国医学装备Issue(5)：37-39,40,4.DOI:10.3969/J.ISSN.1672-8270.2014.05.014
一种新型SPECT性能检测模体的研制
Research and design a new model phantom for SPECT quality control testing
李红磊 1刘晓建 1杨昆 2李晓鸣 2姚树林 3杜国生4
作者信息
- 1. 中日友好医院核医学科 北京 100029
- 2. 北京贝特莱博瑞技术检测有限公司 北京 100013
- 3. 解放军总医院核医学科 北京 100853
- 4. 北京市疾病预防控制中心防护所 北京 100013
- 折叠
摘要
Abstract
Objective: To research and design a new model for SPECT quality control testing, which is consistent with the national standards of geometry and materials, and has a lot of advantages, including the optimized and reasonable structure, convenient to use, high efficiency, and little exposure dose for testing personnel. Methods: To investigate current international and domestic standard protocols for the purpose of confirming the key parameter; to optimize the design based on the characteristics of γradiation detection and prevention, and improve the capability of the available technologies. Results: The process of research and design includes:1. Lead Grid model, applied to test the“inherent spatial resolution”and“inherent spatial differential linearity”of the SPECT system, with one die body endowed with bidirectional application as X/Y;2. Dual Linear Source model, used to test“the system spatial resolution (mm)”and“the whole body spatial resolution (mm)”, as well as the“the system spatial resolution (mm)”of double detectors;3. Plane Source model, applied to the simultaneous test of“system plane sensitivity”of the double detectors;4. Holder of Radioactive Source with low scattering. 5. Others for connecting and supporting. 6. Data acquisition and analysis software. This new model has obtained 4 patent licenses. Conclusion:This new model is easy to use, highly effective. It could lessen the dosage of 99Tcm, reduce the radiation injury of personnel. In the future, we need improve the structure of model to reduce radiation dose further, and make a positioning standard for lead grid model during quality control detectingin China, and this work also lay the foundation for the further work in the quality control of the dental panoramic machine.关键词
核医学/检测模体/分辨力/铅栅模Key words
Nuclear medicine/Resolution/Lead grid model分类
医药卫生引用本文复制引用
李红磊,刘晓建,杨昆,李晓鸣,姚树林,杜国生..一种新型SPECT性能检测模体的研制[J].中国医学装备,2014,(5):37-39,40,4.
