Browse > Article
http://dx.doi.org/10.17946/JRST.2016.39.4.01

Suggestion of The Manual Exposure Condition Guideline for Reducing Patient Dose in Digital Breast Tomosynthesis  

Hong, Eun-Ae (Dept. of Radiology, Korea University Guro Hospital)
Lee, In-Ja (Dept. of Radiologic Technology, Dongnam Health University)
Publication Information
Journal of radiological science and technology / v.39, no.4, 2016 , pp. 483-491 More about this Journal
Abstract
The conditions after exposure to digital mammography and digital breast tomosynthesis were analyzed. The examinations for the ACR phantom were done using manual exposure, not auto exposure, to examine image discrimination and patient dose. As a result, the following results were derived: In the CC exposure, the kVp was 2kVp higher while mAs decreased to 58.6% for the 3D tomography. Such result showed an approximate decrease of 60mAs. At that time, the patients' Average Glandular Dose (AGD) was 1.65mGy in 2D and 1.87mGy in 3D; thus, AGD of 3D was shown to have about 1.13times higher. The result of the manual exposure revealed a reduced mAs of up to 80%; there was no effect in the assessment standard in terms of image discrimination, resulting in more than 10 points. When mAs was reduced to 80% in the manual exposure for ACR phantom, AGD was decreased to 0.66mGy. The diagnostic values of images were maintained and patients dose was reduced in the manual exposure in the AEC condition for 3D. Since the use of 3D has recently increased, using the manual exposure has been recommended in this study to improve the diagnostic value, while, simultaneously reducing patients dose.
Keywords
Digital mammography; Brest tomosynthesis; ACR Phantom; Manual exposure; Patients dose;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
연도 인용수 순위
1 Mandelson, M. T., Oestreicher, N., Porter, P. L., White, D., Finder, C. A., Taplin, S. H., et al : Breast Density as a Predictor of Mammographic Detection Comparison of Interval and Screen-Detected Cancers, Journal of the National Cancer Institute, 92, 1081-1087, 2000   DOI
2 Moon, W. K. : The Use of Computer -Aided Detection System and Digital Mammography in Seoul National University Hospital, The Second Seoul International Symposium for Computer-Aided Diagnosis Proceeding, 24-25, 2004
3 www.kukinews.com http://news.kukinews.com/news/ article.html?no=321667
4 Kim, H. C., Cho, P. G., Kim, S. S., Kim, J. H., Kim, Y.H. : A Survey on Radiation Exposure of Patient in Mammography, Journal of Radiological Science and Technology, 27(4), 55-60, 2004
5 Lee, I. J., Park, K. Y., Kim, S. S. : Research on the Actual Condition of Mammography and Space Scattered Dose in Mammography Room, Journal of Radiological Science and Technology, 29(1), 21-28, 2006
6 Shin, G. S., Kim, J. M., Kim, Y. H., Choi, J. H., Kim, C. K. : Comparison of Average Glandular Dose in Screen-Film and Digital Mammography Using Breast Tissue-Equivalent Phantom, Journal of Radiological Science and Technology, 30(1), 13-22, 2007
7 http://www.doctorsnews.co.kr/news/article- View.html?idxno=78930
8 Kim, M. Y., Kim, H. S. : The Evaluation of Radiation Dose by Exposure Method in Digital Magnification Mammography, Journal of Radiological Science and Technology, 35(4), 293-298, 2012
9 Shin, G. S., Choi, J. H., Kim, Y. H., Kim, J. M., Kim, C. K., Yang, J. H. : Patient Dose in Mammography, Journal of Radiological Science and Technology, 28(4), 293-299, 2005
10 Kwoen, D. C., Lee, E. M., Park, P. : Measurement of the Compression Force and Thickness applied during Mammography, Journal of Radiological Science and Technology, 26(2), 229-35, 2003
11 Lee, I. J. : Relationship of Compressed Breast Thickness and Average Glandular Dose According to Focus/Filter, Journal of Radiological Science and Technology, 32(3), 261-270, 2009
12 Kim, S. Y., Kim, M. H., OH, K. K. : Analysis and Comparison of Breast Density according to Age on Mammogram between Korean and Western Women, Korean Journal of Radiology, 42, 1009-1014, 2000   DOI
13 Park, J. Y., Beak, S. M. : A Study on the Actual Conditions and Characteristics of Mammographic Units in Some Area, Journal of the Korean Society of Radiology, 6, 121-127, 2012   DOI
14 http://www.kbcf.or.kr/bhi/bhi_info/present/distribution_domestic.do
15 Ministry of Health and Welfare : Patient dose recom- mendation of guidelines in Mammography, Radiation Safety Management series, 16, 2008
16 Tabar, L., Yen, M. F., Vitak, B., Chen, H. H., Smith, R. A., Duffy, S. W. :Mammography Service Screening and Mortality in Breast Cancer Patient: 20-year Follow-up Before and After Introduction of Screening, Lancet, 361, 1405-1410, 2003   DOI
17 Duffy, S. W., Tabar, L., Chen, H. H., Holmqvist, M., Yen, M. F., Abdsalah, S., et al : The Impact of Organized Mammography Service Screening on Breast Carcinoma Mortality in Seven Swedish Counties, Cancer, 95, 458-469, 2002   DOI