치과 방사선 검사에서 유효선량 평가
Evaluation of Effective Dose in Dental Radiography
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초록
과학 기술의 발달로 인해 의료 방사선 장비 또한 첨단화 되고 있으며 정확한 진단과 치료를 할 수 있게 되어 의료의 질적 향상은 물론 양적인 면에서도 그 사용이 날로 증가하고 있는 추세이다. 특히 환자 피폭선량에 대부분을 차지하는 CT(Computed Tomography) 촬영의 건수는 크게 증가하고 있다. 치과 방사선 검사의 경우 정확한 병변 진단을 위한 CT 및 CBCT(Cone Beam Computed Tomography) 의 도입으로 과거에 비해 환자는 많은 선량을 받게 되었다. 본 연구에서는 인체 팬텀과 TLD-100H를 이용하여 치과 방사선 검사별 조직의 흡수선량을 측정하고 ICRP 60, 103에 따라 유효선량을 계산하였다. ICRP 60, 103에 따른 유효선량 값은 파노라마 검사의 경우 5.1μSv, 29.5μSv, 세팔로 검사의 경우 11.2μSv, 14.4μSv,이며 CBCT는 상악골의 경우 53.7μSv, 209.6μSv, 하악골은 129μSv, 391.5μSv 그리고 CT에서는 상악골의 경우 93.3μSv, 139.5μSv이며 하악골은 282.7μSv, 489.7μSv로 평가 되었다. CBCT 검사의 경우 유효선량은 CT 검사에 비해서는 적지만 파노라마 검사 및 세팔로 검사에 비해서는 높게 평가되었다.
Abstract
Along with the developments of science technology, up-to-date medical radiation equipments are introduced. Those equipments has brought many progresses in diagnosing patients not only in the quantitative aspects but in the qualitative ones. Especially, in the case of dental radiography, patients can be exposed more than CT, cone beam computed tomography (CBCT). In this study, we used human phantom and TLD-100H to measure the organ dose in each dental radiography and computed the effective dose according to ICRP (International Committee for Radioactivity Prevention) 60, 103. We measured the effective dose to be 5.1 and 29.5μSv in the panoramic radiography and 11.2 and 14.4μSv in the cephalometric radiography respectively. We also executed the CBCT and CT test on the maxillaries and the mandibles and found the amounts of effective dose were 53.7, 209.6, 129, and 391.5μSv respectively in the CBCT and 93.3μ, 139.5, 282.7 and 489.7μSv in the CT test. Consequently, it was shown that the effective dose in the CBCT test was lower than one in the CT test, but was higher in both panoramic and cephalometric radiography.
참고문헌 (15)
- Health insurance review & assessment service, "state of medical equipment according to classification (2003-2010)", ~ (2003)
- 김광표, "Radiation Dose Associated With Common Computed Tomography Examinations and the Associated Lifetime Attributable Risk of Cancer", ARCHIVES OF INTERNAL MEDICINE, 169(22), pp.2078~2086, AMER MEDICAL ASSOC
- United Nations Scientific Committee on the Effects of Atomic Radiation, "Sources and effect of ionizing radiation. Report Vol. 1" (2000), UNSCEAR publications
- International Comission on Radiological Protection, "1990 Recommendations of the International Commission on Radiological Protection" (1991), Pergamon Press
- International Commission on Radiological Protection, "The 2007 Recommendations of the ICRP" (2008), Elsevier
- J.A. Roberts, "Effective dose from cone beam CT examinations in dentistry", Br J Radiol, 82(1), pp.35~40 (2009)
- F. Gijbels, "Dosimetry of digital panoramic imaging. Part I. Patient exposure", Dentomaxillofac Radiol, 34(3), pp.145~149 (2005)
- John B Ludlow, "Patient risk related to common dental radiographic examination", JADA, 139(9), pp.1237~1243 (2008)
- Heiko visser, "Dose reduction by direct-digital cephalometric radiography", The angle orthodontist, 71(3), pp.159~163 (2001)
- E. Hirsch, "Dosimetry of the cone beam computed tomography veraviewepocs 3D compared with the 3D Accuitomo in different fields of view", Dentomaxillofac Radiol, 37(5), pp.268~273 (2008)
- J.B. Ludlow, "Comparative dosimetry of dental CBCT devices and 64 slice CT for oral and maxillofacial radiology", Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 106(1), pp.106~114 (2008)
- M Loubele, "Comparison between effective radiation dose of CBCT and MSCT scanners for dentomaxillofacial applications", Eur J Radiol, 71(3), pp.461~468 (2009)
- 이종녕, "최근 개발된 cone beam computed tomography의 흡수선량 및 유효선량 평가", Imaging Science in Dentistry, 37(2), pp.93~102 (2007), 대한구강악안면방사선학회
- Kostas Tsiklakis, "Dose reduction maxillofacial imaging using low dose Cone Beam CT", Euopean Journal of Radiology, 56(3), pp.413~417 (2005)
- C.P. Shortt, "Thyroid Dose During Neurointerventional Procedures: Dose Lead Shielding Reduce the Dose", Cardiovasc Intervent Radiol, 30(5), pp.922~927 (2007)