Journal of radiological science and technology (대한방사선기술학회지:방사선기술과학)

Korean Society of Radiological Science (대한방사선과학회)
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Measurement of Breast Skin Dose According to Shield Thickness During Whole Spine Scanography Using Digital Radiography System

Digital Radiography 시스템을 사용하여 전 척추검사 시 차폐체 두께에 따른 유방피부선량 측정

  • Nam, Soon-Kwon (Department of Physics, Kangwon National University) ;
  • Choi, Joon-Ho (Department of Physics, Kangwon National University)
  • Received : 2019.01.09
  • Accepted : 2019.02.25
  • Published : 2019.02.28
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Abstract

Whole Spine Scanography (WSS) using the Digital Radiography (DR) system is an examination that requires whole body X-ray exposure, which involves more exposure to radiation for patients than other general radiographies. This can affect the occurrence of breast cancer. This research measured radiation dose when breasts were shield and not shield using the Auto Exposure Control (AEC) mode. The radiation dose without a shield was 1.540 mGy, and that using a collimator was measured 0.506 mGy. Moreover, 0.733 mGy was measured when 1 shield (0.3 mm) was used, and $0.523{\mu}Gy$ when 5 of them (1.5 mm) were used. The results showed that the radiation dose with 5 shields and the radiation dose with a collimator were similar. Moreover, 0.233 mGy was measured when 8 shields (2.4 mm) were used. The standard deviation were 0.081 when using collimator and 0.014 when 5 shields were used. Also, when 8 shields were used, it was found to be 0.002. Most patients who go under a scoliosis test are children or young people who are highly sensitive to radiation. In the research results, the case where the organs sensitive to radiation, women's breasts, were shielded showed more distinct differences compared to without shields. It is considered that using shields can provide more constant shield than using a collimator and lower the risk of breast cancer caused by exposure to radiation.

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References

  1. Geijer H, Verdonck B, Beckman KW, Andersson T, Persliden J. Digital radiography of scoliosis with a scanning method, radiation dose optimization. Eur Radiol. 2003;13(3):543-51. https://doi.org/10.1007/s00330-002-1476-1
  2. Nash CL, Gregg EC, Brown RH, Pilai K. Risks of exposure to X-rays in patients undergoing longterm treatment for scoliosis. J Bone Joint Surg Am. 1979;61(3):371-4. https://doi.org/10.2106/00004623-197961030-00009
  3. Report No 80 : National Council on Radiation Protection and Measurements. Induction of thyroid cancer by ionizing radiation : National Council on Radiation Protection and Measurements; 1985.
  4. ICRP Publication 60 : 1990 Recommendations of the International Commission on Radiological Protection, ICRP. Elsevier Health Sciences; 1991.
  5. Hoffman DA, Lonstein JE, Morin MM, Visscher W, Harris BSH, Boice JD. Breast Cancer in Women With Scoliosis Exposed to Multiple Diagnostic X Rays. J of the National Cancer Institute. 1989;81(17):1307-16. https://doi.org/10.1093/jnci/81.17.1307
  6. Ronckers CM, Doody MM, Lonstein JE, Stovall M, Land CE. Multiple Diagnostic X-rays for Spine Deformities and Risk of Breast Cancer. Cancer Epidemiol Biomarkers Prev. 2008;17(3):605-13. https://doi.org/10.1158/1055-9965.EPI-07-2628
  7. Anual report of cancer statistics in Korea in 2002, National cancer center, Korea central cancer registry; 2007.
  8. Anual report of cancer statistics in Korea in 2004, National cancer center, Korea central cancer registry; 2008.
  9. Anual report of cancer statistics in Korea in 20105, National cancer center, Korea central cancer registry; 2018.
  10. Land CE, Tokunaga M, Koyama K, Soda M, Preston DL, Nishimori I, Tokuoka S. Incidence of female breast cancer among atomic bomb survivors, Hiroshima and Nagasaki, 1950-1990. Radiat Res. 2003;160:707-17. https://doi.org/10.1667/RR3082
  11. Doody MM, Lonstein JE, Stovall M, Hacker DG, Luckyanov N, Land CE. Breast cancer mortality after diagnostic radiography: findings from the U.S. Scoliosis Cohort Study. Spine (Phila Pa 1976). 2000;25:2052-63. https://doi.org/10.1097/00007632-200008150-00009
  12. Mekis N, Zontar D, Skrk D. The effect of breast shielding during lumbar spine radiography. Radiol Oncol. 2013;47(1):26-31. https://doi.org/10.2478/raon-2013-0004
  13. No authors listed. The 2007 recommendations of the International Commission on Radiological Protection. ICRP publication 103. Ann ICRP. 2007;37:1-332.
  14. Wrixon AD. New ICRP recommendations. J Radiol Prot. 2008;28:161-8. https://doi.org/10.1088/0952-4746/28/2/R02
  15. Busch HP, Faulkner K. Image Quality And Dose Management In Digital Radiography: A New Paradigm For Optimisation. Radiation Protection Dosimetry. 2005;117(1-3):143-7. https://doi.org/10.1093/rpd/nci728
  16. Busch HP, Krankenhaus der Barmherzigen Bruder. Need for new optimization strategies in CR and direct Digital radiography. Radiation Protection Dosimetry. 2000;90(1-2):31-3. https://doi.org/10.1093/oxfordjournals.rpd.a033139
  17. Kim JS, Yoon SW, Seo DN, Nam SR, and Kim JM. Evaluation of the Patient Effective Dose in Whole Spine Scanography Based on the Automatic Image Pasting Method for Digital Radiography. Iran J Radiol. 2016;13(1):1-7.
  18. Hwang JH, Lee KB. A Study on the Quantitative Analysis Method through the Absorbed Dose and the Histogram in the Performance Evaluation of the Detector according to the Sensitivity Change of Auto Exposure Control(AEC) in DR(Digital Radiography). The Journal of the Korea Contents Association. 2018;18(1):232-40. https://doi.org/10.5392/JKCA.2018.18.01.232
  19. Guidelines for patient dose recommendations for general radiology examination. Ministry of Food and Drug Safety. 2012:1-47.
  20. Investgation of patient dose for Diagnostic Reference Levels(DRL) in radiographic examination: National Survey in Korea. Ministry of Food and Drug Safety. 2011:14-28.
  21. Kim KW, Son JH. Study on Exposure Dose According to Change of Source to Image Distance and Additional Filter Using Abdomen Phantom. J of Radiological Science and Technology. 2016;39(3):407-14. https://doi.org/10.17946/JRST.2016.39.3.15
  22. Mekis N, Zontar D, Skrk D. The effect of breast shielding during lumbar spine radiography. Radilo Oncol. 2013;47(1):26-31. https://doi.org/10.2478/raon-2013-0004
  23. Kim JS, Seo DN, Kwon SM, Kim JM. Patient Radiation Exposure Dose Evaluation of Whole Spine Scanography due to Exposure direction. J of Radiological Science and Technology. 2015;38(1):1-6. https://doi.org/10.17946/JRST.2015.38.1.01