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Analysis of Exposure Dose According to Chest and Abdomen Combine CT Exam Method

CT 흉·복부 통합검사 시 선량분석

  • Mo, KyeongHwan (Department of Graduate Studies of Public Health Science, Eulji University) ;
  • Han, DongKyoon (Department of Radiological science, College health science Eulji University) ;
  • Lim, HyunSoo (Department of Biomedical Engineering, Chungnam University) ;
  • Jeon, WooJin (Department of Biomedical Engineering, Chungnam University)
  • 모경환 (을지대학교 보건대학원) ;
  • 한동균 (을지대학교 보건과학대학 방사선학과) ;
  • 임현수 (충남대학교 의공학과) ;
  • 전우진 (충남대학교 의공학과)
  • Received : 2014.09.16
  • Accepted : 2014.12.25
  • Published : 2014.12.30

Abstract

The purpose of this study is confirmed to usefulness between division exam and combine exam of chest and abdomen according to comparing chest and abdomen radiation dose of division exam and combine exam in CT exam method. This study was conducted on patients who were admitted to the E hospital from July 2013 to March 2014 underwent CT studies for the diagnosis of chest and abdomen disease. In study result, male dose were more higher than female dose according to gender analysis of exposure dose that combine exam effective dose were male $33.10{\pm}2.75mSv$, female $31.66{\pm}3.12mSv$ and chest exam effective dose were male $9.07{\pm}2.62mSv$, female $8.30{\pm}2.18mSv$(p<0.05). And, division exam dose and combine exam dose were similar in gender comparison (p>0.05). And, combine exam effective dose, only chest exam effective dose, only abdomen exam effective dose were more higher than DRL(Diagnostic Reference Level) in comparison of patient exposure dose with DRL (p<0.05). In conclusion, chest-abdomen combine exam dose and division exam dose were similar. The chest-abdomen combine study can be used as follow-up and emergency trauma patients. That study will be reduce exam time and the occurrence risk of side effect of the contrast medium.

본 연구는 CT로 흉부와 복부를 모두 검사하는 사람들을 대상으로 흉 복부를 1회에 통합으로 검사하는 경우와 2회에 걸쳐 흉부와 복부로 분할 검사하는 경우의 피폭선량을 비교하여 두 검사방법 간 피폭선량에 차이가 있는지 확인하고 이를 토대로 흉 복부 통합검사의 유용성에 대해 알아보고자 한다. 2013년 7월 1일부터 2014년 3월까지 E종합병원에 내원하여 흉부와 복부 CT 검사를 시행한 환자를 대상으로 하였다. 분석결과 성별에 따른 선량 분석에서 흉 복부 통합 검사 시 남성이 받는 유효 선량은 $33.10{\pm}2.75mSv$, 여성이 받는 유효 선량은 $31.66{\pm}3.12mSv$으로 나타났고, 흉부 단독 검사 시 남성이 받는 유효 선량은 $9.07{\pm}2.62mSv$, 여성이 받는 유효 선량은 $8.30{\pm}2.18mSv$으로 나타나, 남성의 피폭량이 여성에 비해 높게 나타났다(p < 0.05). 동일 성별 내에서 통합검사 시의 피폭량과 분할검사 시 피폭량의 합은 차이를 나타내지 않았고(p > 0.05), 각 검사 별 피폭선량은 통합검사, 흉부 단독 검사, 복부 단독 검사 시에 모두 환자권고선량(DRL) 보다 높았다(p < 0.05). 결론적으로 흉 복부 통합 검사는 분할검사 시와 비교하여 피폭선량에 차이가 없었으며, 주기적으로 흉부와 복부 CT 검사를 실시하여 추적조사를 시행하는 환자와 응급 외상환자 등에게 검사에 소요되는 시간을 줄여주고 조영제의 부작용 위험의 가능성을 줄여 줄 수 있는 유용성이 있다.

Keywords

References

  1. M.Y. Park, S.E. Jung, "CT radiation dose and radiation reduction strategies," J. Korean Med. Assoc., vol. 54, No. 12, pp. 1262-1268, 2011. https://doi.org/10.5124/jkma.2011.54.12.1262
  2. S.H. Kim, Y.J. Kim, and J.S. Kwak, "Development and Radiation Shield effects of Dose Reduction Fiber for Scatter ray in CT Exams," JKAIS, vol. 14, No. 4, pp. 1871-1876, 2013. https://doi.org/10.5762/KAIS.2013.14.4.1871
  3. M.Y. Yoo, S. Park, H.J. Jang et al., "Comparison of Image Quality and Dose According to the Arm Positioning in the Chest CT," JKSR, vol. 8, No. 2, pp. 75-79, 2014. https://doi.org/10.7742/jksr.2014.8.2.75
  4. M.S. Ryu, N.G. Choi, J.B. Han et al., "Effects of Radiation Dose and Image Quality at the Coronary Angiography," JKCA, vol. 12, No. 4, pp. 367-372, 2012. https://doi.org/10.5392/JKCA.2012.12.04.367
  5. B. Bischoff, F. Hein, T. Meyer et al., "Trends in radiation protection in CT: present and future status," J Cardiovasc Comput Tomogr, vol. 3, pp. S65-S73, 2009. https://doi.org/10.1016/j.jcct.2009.11.003
  6. P. Galiwango, B. J. Chow, "Cardiac computed tomography and risks of radiation exposure: how low can we go?," Can J Cardiol, vol. 27, No. 5, pp. 536-537, 2011. https://doi.org/10.1016/j.cjca.2010.12.032
  7. R. Kloeckner, D. P. d. Santos, J. Schneider et al., "Radiation exposure in CT-guided interventions," Eur J Radiol, vol. 82, No. 12, pp. 2253-2257, 2013. https://doi.org/10.1016/j.ejrad.2013.08.035
  8. SiemensAG, "SOMATOM Definition Application Guide," 2006.
  9. C. McCollough, D. Cody, S. Edyvean et al., "The measurement, reporting, and management of radiation dose in CT," Report of AAPM Task Group, vol. 23, pp. 1-28, 2008.
  10. H.J Kim, J.H Cho, C.S Park, "Evaluation of Image Quality in Low Tube-Voltage Chest CT Scan," Journal of Radiational Protection, Vol. 35, No. 4, pp. 135-141, 2010.
  11. Korea Food and Drug Administration, "Optmization Guideline and Justification Security of CT Medical Imaging Exam," 2012.
  12. I.H. Koh, K.G. Kim, D.Y. Kim et al., "TEXTBOOK OF COMPUTED TOMOGRAPHY," Chung Ku Publishing co. Korea, 2003.
  13. UNSCEAR, "Sources and effects of ionizing radiation," United Nations Publication, USA, 2000.
  14. D.J. Brenner, C.D. Elliston, E.J. Hall et al., "Estimated risks of radiation-induced fatal cancer from pediatric CT," AJR Am J Roentgenol, vol. 176, No. 2, pp. 289-296, 2001. https://doi.org/10.2214/ajr.176.2.1760289
  15. A. Sodickson, P.F. Baeyens, K.P. Andriole et al., "Recurrent CT, cumulative radiation exposure, and associated radiation-induced cancer risks from CT of adults1," Radiology, vol. 251, No. 1, pp. 175-184, 2009. https://doi.org/10.1148/radiol.2511081296
  16. H.J. Kim, I.B. Moon, J.B. Han et al., "Evaluation of Radiation Dose and Image Quality Between Manual and Automatic Exposure Control Mode According to Body Mass Index in Cardiac CT," JKCA, vol. 13, No. 4, pp. 290-299, 2013. https://doi.org/10.5392/JKCA.2013.13.04.290
  17. N. E. Sharp, W. J. Svetanoff, A. Desai et al., "Radiation exposure from head computed tomography scans in pediatric trauma," J. Surg. Res., vol. In press, 2014.
  18. K.H. Do, "The health effects of low-dose radiation exposure," J. Korean Med. Assoc., vol. 54, No. 12, pp. 1253-1261, 2011. https://doi.org/10.5124/jkma.2011.54.12.1253
  19. A.B. de Gonzalez, S. Darby, "Risk of cancer from diagnostic X-rays: estimates for the UK and 14 other countries," Lancet, vol. 363, No. 9406, pp. 345-351, 2004. https://doi.org/10.1016/S0140-6736(04)15433-0
  20. M. Tubiana, A. Aurengo, "Dose-effect relationship and estimation of the carcinogenic effects of low doses of ionising radiation: the Joint Report of the Academie des Sciences (Paris) and of the Academie Nationale de Medecine," Int J Radiat Oncol Biol Phys, vol. 2, No. 3, pp. 135-153, 2006.
  21. http://www.koreahealthlog.com/3070

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