Journal of the Korean Society of Radiology (한국방사선학회논문지)

The Korean Society of Radiology (한국방사선학회)
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Patient Radiation Exposure Dose in Computed Tomography

전산화단층촬영장치에서 환자피폭선량

  • Cho, Pyong Kon (Department of Radiological Science, Catholic University of Daegu)
  • 조평곤 (대구가톨릭대학교 방사선학과)
  • Received : 2014.10.27
  • Accepted : 2015.02.25
  • Published : 2015.02.28
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Abstract

In case of a CT examinations, there is a difference in the distribution of radiation dose from that of general X-ray equipments, and it has been known to cause a great radiation exposure during the examinations. However, owing to its high reliability on the accuracy of a examinations result, its use has increased continuously. In consideration of such a circumstance, the CT equipment, radiation dose during CT examinations, diagnostic reference level, and solutions to reduce radiation dose were mentioned on the basis of previously reported data.

전산화단층촬영장치(computed tomography, CT)을 이용한 검사의 경우 방사선량의 분포가 일반 X선 장치와 차이가 있고 검사로 인한 방사선 피폭이 많은 것으로 알려져 있다. 그러나 검사 결과의 정확성에 대한 신뢰도가 높아 그 이용도는 계속적으로 증가하고 있다. 이와 같은 상황을 고려하여 기존에 발표된 자료를 바탕으로 CT장치, CT검사에서 방사선량, 진단참고준위 그리고 검사 시 방사선량 감소 방안에 대해 알아보았다.

Keywords

References

  1. J. Anthony Seibert, Gary T. Barnes, and Robert G. Gould. Specification, Acceptance testing and quality control of diagnostic X-ray imaging equipment. Medical physics monograph No. 20 pp. 899-936 1991.
  2. Gray, J. E. Radiological protection issue in mammography and computed tomography proc. conf. (Vienna : IAEA) pp. 183-200 2001.
  3. S. J. Golding, P. C. Shrimpton. Radiation ]dose in CT: are we meeting the challenge?. The British Journal of Radiology, Vol. 75, pp. 1-4 2002.
  4. Shrimpton PC, Jones DG, Hillier MC, Wall BF, Le Heron JC, Faulkner K. Survey of CT practice in the UK. Part 2: dosimetric aspects, NRPB R249. Chilton: NRPB, 1991.
  5. Shrimpton PC, Edyvean S. CT scanner dosimetry. Br J Radiol 71 pp. 1-3 1998. https://doi.org/10.1259/bjr.71.841.9534691
  6. PyongKon Cho, BoKyung Seo, TaeKyu Choi, JangSeob Kim, YouHyun Kim, JongHak Choi et al. The development of a diagnostic reference level on patient dose for CT examination in Korea. Radiation Protection Dosimetry, (Vol.)129, No. 4, pp. 463-468 2008. https://doi.org/10.1093/rpd/ncm463
  7. PyongKon Cho, JongHak Choi, SangHoon Cha, KiYeol Lee, DongChul Shin, JungHo Kang et al. The development of a guidance level for patient dose for CT examinations in Korea. Radiation Protection Dosimetry, (Vol.) 138, No. 2, pp. 137-143 2009. https://doi.org/10.1093/rpd/ncp236
  8. Eric J. Hall. Radiobiology for The Radiologist. 5th edition, Lippincott Williams & Wilkins, pp. 299-319 2004.
  9. T. B. Shope, R. M. Gagne and G. C. Johnson. A method for describing the dose delivered by transmission X-ray computed tomography. Medical Physics, 8, 488 1981. https://doi.org/10.1118/1.594995
  10. A. Suzuki and M. N. Suzuki. Use of a pencil-shape ionization chamber for measurement of exposure resulting from a computed tomography scan. Medical Physics, (Vol.) 5, pp. 536-539, 19138. https://doi.org/10.1118/1.594445
  11. Department of Health and Human service, Food and Drug Administration. 21 CFR part 1020, Diagnostic x-ray systems and their major components, amendments to performance standard, Final rule. Federal Register, (Vol.) 49, 1131, 1984.
  12. Internet address of the Reference Database on CT dosimetry. http://www.efomp.org
  13. Geleijns, et al., European guidelines on quality criteria for computed tomography. EUR 1692, 1999.
  14. W. Leitz, B. Axelsson and G. Szendro. Computed tomography dose assessment - a practical approach. Radiation Protection Dosimetry, (Vol.) 513, No. 1-4, pp. 388-380, 1995.
  15. National Institute of Radiological Science (supervisr), Report 1998 to the general Meeting of the International Science Committee on the Source. Effect and Risk of Radiation-Effect of Atomic Radiation Attachment C(exposure from the medical use of radiation). Jitsugyokoho, Tokyo. pp. 95-334 1990.
  16. R. A. Jucius and G. A. Kambic. Radiation dosimetry in computed tomography(CT). Proc. SPIE 110, 1, 191313.
  17. K. S. Pentlow and L. N. Rothenberg. Patient dose in computerized axial tomography. Physics in Canada, Digest of fourth International Conference on Medical Physics, 32, 31, 19136.
  18. J. R. Cameron, N. Suntharalingam and G. Kenney, Thermoluminscent dosimetry, University of Wisconsin Press, Madison, WI, 1968.
  19. M. K. Kalra, M. M. Maher, T. L. Toth et al. Strategies for CT radiation dose optimization. Radiology, 230 pp. 619-628 2004. https://doi.org/10.1148/radiol.2303021726
  20. M. K. Kalra. MDCT: A practical approach. In S. Saini (Ed). "MDCT Radiation Dose" pp. 30-35, 2006.
  21. National Institute of Radiological Science (supervisr), Report 1998 to the general Meeting of the International Science Committee on the Source, Effect and Risk of Radiation-Effect of Atomic Radiation Attachment C(exposure from the medical use of radiation). Jitsugyokoho, Tokyo. pp. 265-334, 1990.
  22. IAEA, International basic safety standards for protection against ionizing radiation and the safety of radiation source, EADA Safety Series No.115, Vienna. pp. 279-280, 1996.
  23. T. Orito, "Investigation of accrual situation of radioiogical techniques to take measures for patient exposure dose reduction", Jpn. J. Radioiogical technology 32, pp. 34-39, 1974.
  24. T. Orito, S. Sanada, S. Koga, et al., "Changes in x-ray diagnostic technology and patient exposure dose comparision with 1973 and 1979", A Monthly Journal of Medical Imaging and Information, Vol. 12, No. 6, pp. 325-327, 1980.
  25. S. Suzuki, T. Orito, Koga, et al., "Changes in x-ray diagnostic technology and patient exposure dose comparision with 1973 and 1979", A Monthly Journal of Medical Imaging and Information, Vol. 22, No. 6, pp. 359-363, 1990.

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