Effect of anode/filter combination on average glandular dose in mammography

被引：13

作者：

Biegala, Michal ^{[1
,2
]}

Jakubowska, Teresa ^{[1
,2
]}

Markowska, Karolina ^{[3
]}

机构：

[1] Med Univ Lodz, Fac Biomed Sci & Postgrad Training, Dept Med Imaging Technol, PL-90251 Lodz, Poland

[2] Copernicus Mem Hosp Lodz, Reg Canc Ctr, Dept Med Phys, Lodz, Poland

[3] Lodz Univ Technol Fdn, Laser Diagnost & Therapy Ctr, Lodz, Poland

来源：

JOURNAL OF MEDICAL PHYSICS | 2015年 / 40卷 / 01期

关键词：

Automatic exposure control system; average glandular dose; digital mammography; threshold contrast visibility;

D O I：

10.4103/0971-6203.152251

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

A comparative analysis of the mean glandular doses was conducted in 100 female patients who underwent screening mammography in 2011 and 2013. Siemens Mammomat Novation with the application of the W/Rh anode/filter combination was used in 2011, whereas in 2013 anode/filter combination was Mo/Mo or Mo/Rh. The functioning of mammography was checked and the effectiveness of the automatic exposure control (AEC) system was verified by measuring compensation of changes in the phantom thickness and measuring tube voltage. On the base of exposure parameters, an average glandular dose for each of 100 female patients was estimated. The images obtained by using AEC system had the acceptable threshold contrast visibility irrespective of the applied anode/filter combination. Mean glandular doses in the females, examined with the application of the W/Rh anode/filter combination, were on average 23.6% lower than that of the Mo/Mo or Mo/Rh anode/filter combinations. It is recommended to use a combination of the W/Rh anode /filter which exhibited lower mean glandular doses.

引用

页码：45 / 51

页数：7

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