中国医学装备2025，Vol.22Issue(7)：21-24,4.DOI:10.3969/j.issn.1672-8270.2025.07.004
不同模体对乳腺锥形束CT图像质量控制的影响
Influence of different phantoms on quality control of CBCT for breast
摘要
Abstract
Objective:To investigate influence of different phantoms on the results of quality control for the images of cone beam computed tomography(CBCT)for breast on the basis of quality control for breast CBCT.Methods:Five different manufacturers'phantoms were selected,and they were placed at the position of testing breast in clinical examination to conduct position for phantom according to the method of the national health industry standard WS 818-2023<Standard for testing of quality control in X-ray cone beam computed tomography(CBCT)equipment>.The analysis focused on the differences of evaluation results of using different phantoms for image quality on the basis of a series of parameters included uniformity,resolution of high contrast,resolution of low contrast,and CT value of water in scanning images of different phantoms.Data collection and image reconstruction were performed respectively by using commonly clinical procedures.Corresponding module images were selected from the reconstructed images of standard breast phantom.The common layer thickness and projection method of the system were set to record and analyze data.Results:The image uniformity of measured results of the five phantoms were respectively 42.37±2.01,-5.83±0.15,3.76±0.15,2.16±0.06,3.60±0.10.The differences of the image uniformities among the five phantoms were statistically significant(F=1310.02,P<0.001),and the differences of the CT values of the measured water among the five phantoms were statistically significant(F=9 846.46,P<0.001).The differences in the resolution of low contrast among them were also statistically significant(F=27.50,P<0.001).However,the results of the resolution of high contrast were stability,and there was no significant difference in that among the five phantoms.Conclusion:The measured results of quality control of different phantoms are different.关键词
乳腺/锥形束CT/质量控制/图像质量/模体Key words
Breast/Cone beam CT/Quality control/Image quality/Phantoms分类
医药卫生引用本文复制引用
王建宇,廖建伟,饶鹏,张燕,黄海波,苏艺伟,李成毅,王致..不同模体对乳腺锥形束CT图像质量控制的影响[J].中国医学装备,2025,22(7):21-24,4.基金项目
广东省医学科学技术研究基金项目(粤卫科教函[2023]15号) （粤卫科教函[2023]15号）
广州医科大学科研能力提升计划项目(广医发[2023]16号) （广医发[2023]16号）
广州市市校(院)企联合资助专题(广州市职业环境与健康重点实验室)(2023A03J0502) （院）
广州市科学技术局重点研发计划项目(202206010061)Guangdong Medical Science and Technology Research Fund Project(Yue Wei Science and Education Letter[2023]No.15) （202206010061）
Research Capability Enhancement Program of Guangzhou Medical University(Guangyifa[2023]No.16) （Guangyifa[2023]No.16）
Joint Funding Project of Guangzhou Municipal Schools(Institutes)and Enterprises(Guangzhou Key Laboratory of Occupational Environment and Health)(2023A03J0502) （Institutes）
Key R&D Program of Guangzhou Science and Technology Bureau(202206010061) （202206010061）
