中国医学装备2019，Vol.16Issue(1)：42-45,4.DOI:10.3969/J.ISSN.1672-8270.2019.01.012
不同数学函数算法对SPECT空间分辨性能检测影响分析
Analysis on the influence of different mathematical function algorithms for the detection of SPECT spatial resolution performance
冯泽臣 1朱维杰 1耿建华 2刘辉 3杜国生 1娄云1
作者信息
- 1. 北京市疾病预防控制中心北京市预防医学研究中心, 北京 100013
- 2. 中国医学科学院北京协和医学院肿瘤医院核医学科,北京 100021
- 3. 中国疾病预防控制中心辐射防护与核安全医学所,北京 100088
- 折叠
摘要
Abstract
Objective:To analyze the performance of single-photon emission computed tomography (SPECT) spatial resolution so as to provide reference for the selection of mathematical function algorithms in formulating test standard of SPECT performance.Methods:Using the general test phantom to acquire the Digital Imaging and Communications in Medicine image (DICOM) of three performance parameters included intrinsic spatial resolution power, system spatial resolution power and plane spatial resolution power of whole body.And 10 measured data of 3 performance parameters were randomly obtained, and then parabola algorithm and Gaussian algorithm were adopted to implement fitting calculation and measurement for these data, respectively, and the difference of the two algorithms was further analyzed.Results:The range of fitting determination coefficient (R2) of Gaussian algorithm of three performance parameters that obtained from SPECT was from 0.974 to 0.999.And the test P values of intrinsic spatial resolution power, system spatial resolution power and plane spatial resolution power of whole body were 0.0001, 0.057 and 0.075, respectively.Conclusion:The analysis of spatial resolution performance of SPECT may adopt parabolic algorithm.And the system spatial resolution power should gather the data of 256×256 matrix.关键词
空间分辨力/单光子发射型电子计算机断层扫描仪 (SPECT)/空间分辨性能Key words
Spatial resolution power/SPECT/Performance of spatial resolution分类
医药卫生引用本文复制引用
冯泽臣,朱维杰,耿建华,刘辉,杜国生,娄云..不同数学函数算法对SPECT空间分辨性能检测影响分析[J].中国医学装备,2019,16(1):42-45,4.
