| 利用DICOM信息估算数字乳腺成像辐射剂量 |
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| 引用本文： | 白玫,严汉民,卓芝政. 利用DICOM信息估算数字乳腺成像辐射剂量[J]. 中国医学装备, 2012, 0(5): 1-3 |
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| 作者姓名： | 白玫 严汉民 卓芝政 |
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| 作者单位： | 首都医科大学宣武医院医学工程科北京100053 |
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| 基金项目： | 国家自然科学基金(30870751)多排螺旋CT临床成像质量与受检者受照剂量优化匹配及评价方法研究;国际原子能机构(IAEA)合作研究项目(CRPNO.16155/R1);北京市卫生系统高层次卫生技术人才培养计划(2009-3-57) |
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| 摘 要： | 目的:研究数字乳腺成像DICOM图像头文件中剂量数据的可靠性.方法:采用不同扫描条件扫描乳腺体模;采用电离室剂量计测量体模入射剂量,计算平均腺体剂量并记录DICOM信息中的剂量数据.结果:对于Mo/Mo组合,DICOM图像头文件中入射剂量显示值和实测值的误差为17.30%,MGD显示值和实测值的误差为5.91%;对于Mo/Rh组合,入射剂量显示值和实测值的误差为11.57%,MGD显示值和实测值的误差为3.70%.结论:DICOM信息剂量数据与实测数据基本一致,利用DICOM信息可以估算数字乳腺成像辐射剂量水平
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| 关 键 词： | 数字乳腺成像 入射剂量 平均腺体剂量 |
Using DICOM information to evaluate radiation dose of digital mammography |
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| BAI Mei,YAN Han-min,ZHUO Zhi-zheng. Using DICOM information to evaluate radiation dose of digital mammography[J]. China Medical Equipment, 2012, 0(5): 1-3 |
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| Authors: | BAI Mei YAN Han-min ZHUO Zhi-zheng |
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| Affiliation: | Department of Medical Engineering,Xuanwu Hospital,Capital Medical University,Beijing 100053,China. |
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| Abstract: | Objective:To study the reliability of dose data in DICOM header for digital mammography.Methods:Entrance dose and mean glandular dose(MGD) were measured under different tube voltages and tube currents and dose data in DICOM header were recorded.Results:For Mo/Mo rhodium filter combination,average error of entrance dose was 17.30%,average error of MGD was 5.91%.For Mo/Rh rhodium filter combination,average error of entrance dose was 11.57%,average error of MGD was 3.70%.Conclusion:Dose data in DICOM header is in consistent with the measured data.It can be used to estimate the dose level for digital mammography. |
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| Keywords: | Digital mammography Entrance dose Mean glandular dose |
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