대한안전경영과학회지 (Journal of the Korea Safety Management & Science)

  • 제13권2호
  • /
  • Pages.91-96
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  • 2011
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  • 1229-6783(pISSN)
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  • 2288-1484(eISSN)
대한안전경영과학회 (Korea Safety Management & Science)
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컴퓨터 방사선영상에서 고 관전압 기법을 이용한 안구 입사표면선량 감소에 관한 연구

A Study on Reducing of Entrance Surface Dose with the Eye in the Computed Radiography by Using High Kilo Voltage Peak Technique

  • 투고 : 2011.03.02
  • 심사 : 2011.06.02
  • 발행 : 2011.06.30
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초록

The purpose of this study was to minimize of entrance surface dose (ESD) at the eye using high kVp technique in the computed radiography. We used REX-650R (Listem, Korea) general X-ray unit, and external detector with ESD dosimeter of Piranha 657 (RTI Electronics, Sweden). We used head of the whole body phantom. The total 64 images of X-ray anterior-posterior of skull were acquired using the film/screen (F/S) method and the digital of computed radiography method. The three radiology professor of more 10 years of clinical career evaluated a X-rays images in the same space by 5-point scale. The external detector was performed measurement of ESD of three times by same condition on the eye of the head phantom. The good image quality in the F/S method (90 kVp, 2.5 mAs) showed at the minimized ESD of 0.310 ${\pm}$ 0.001 mGy. the good image quality in the computed radiography method (90 kVp, 2.0 mAs) showed at the minimized ESD of 0.180 ${\pm}$ 0.002 mGy (P = 0.002). Finally the radiation dose could reduced about 50% in the computed radiography method more than the F/S method. In addition the eye entrance surface dose using high kVp technique with the computed radiography was reduced 92% more than conventional technique (F/S method).

키워드

참고문헌

  1. Pinsky, H.M. Dyda, S. Pinsky, R.W. Misch, K.A. and Sarment, D.P. "Accuracy of three-dimensional measurements using cone-beam CT." Dentomaxillofac Radiol, 35 (2006) : 410-416 https://doi.org/10.1259/dmfr/20987648
  2. Korea National Statistical Office. "The Annual Report on the Cause of Death Statistics." Korea, (2008)
  3. White, S.C. "Assessment of radiation risk from dental radiography." Dentomaxillofac Radiol, 21 (1992) : 118-126
  4. Kim, S.Y. Han, J.W. Park, I.W. "Comparison of cone beam CT and conventional CT in absorbed and effective dose." Koean J Oral maxillofac Radiol, 38 (2008) : 7-15
  5. Food & Drug Administration. "Dear Health-care Professional Letter." Seoul, Korea (2009)
  6. Kalra, M.K. Rizzo, S. Maher, M.M. et al. "Chest CT Performed with Z-Axis Modulation: Scanning Protocol and Radiation Dose." Radiology, 237 (2005) : 303-308 https://doi.org/10.1148/radiol.2371041227
  7. Namasivayam, S. Kalra, M.K. Pottala, K.M. Waldrop, S.M. and Hudgins, P.A. "Optimization of Z-Axis Automatic Exposure Control for Multidetector Row CT Evaluation of Neck and Comparison with fixed tube current technique for image quality and radiation dose." AJNR Am J Neuroradiol 27 (2006) : 2221-2225
  8. Seoung, Y.H. Kim, Y.O. and Choe, B.Y. "Reducing of craniofacial radiation dose using automatic exposure control technique in the 64 multi-detector computed tomography." Korean J Med Phys 21(2) (2010) : 137-144
  9. Sonoda, M. Takano, M. Miyahara, J. and Kato, H. "Computed radiography utilizing scanning laser stimulated luminescence." Radiology, 148 (1983) : 833-838
  10. Dobbins, J.T. 3rd, Ergun, D.L. Rutz, L. Hinshaw, D.A. Blume, H. and Clark, D.C. "DQE(f) of four generations of computed radiography acquisition devices. Med Phys. 22(10) (1995) : 1581-1593 https://doi.org/10.1118/1.597627
  11. Floyd, C.E. Jr, Warp, R.J. Dobbins, J.T. 3rd, Chotas, H.G. Baydush, A.H. Vargas-Voracek, R. and Ravin, C.E. "Imaging characteristics of an amorphous silicon flat-panel detector for digital chest radiography." Radiology, 218(3) (2001) : 683-688
  12. Metz, S. Damoser, P. Hollweck, R. Roggel, R. Engelke, C. Woertler, K. Renger, B. Rummeny, E.J. and Link, T.M. "Chest radiography with a digital flat-panel detector: experimental receiver operating characteristic analysis." Radiology, 234(3) (2005) : 776-784 https://doi.org/10.1148/radiol.2343031805
  13. Pascoal, A. Lawinski, C.P. Mackenzie, A. Tabakov, S. and Lewis, C.A. "Chest radiography: a comparison of image quality and effective dose using four digital systems." Radiat Prot Dosimetry, 114 (2005) : 273-277 https://doi.org/10.1093/rpd/nch572
  14. Strotzer, M. Gmeinwieser, J. Volk, M. Frund, R. Seitz, J. Manke, C. Albrich, H. and Feuerbach, S. "Clinical application of a flat-panel X-ray detector based on amorphous silicon technology: image quality and potential for radiation dose reduction in skeletal radiography." AJR. Am J Roentgenol 171(1) (1998) : 23-27 https://doi.org/10.2214/ajr.171.1.9648757
  15. Strotzer, M. Volk, M. Wild, T. von Landenberg, P. and Feuerbach, S. "Simulated bone erosions in a hand phantom: detection with conventional screen-film technology versus cesium iodide-amorphous silicon flat-panel detector." Radiology 215(2) (2000) : 512-515
  16. Kang, H.S. Kim, C.K. and Huh, J. "A Study on High Kilovoltage Technique in taking Chest Radiogram." 2(1) (1979) : 37-43
  17. Rasband, W.S. ImageJ, U.S. "National Institutes of Health." Bethesda, Maryland, USA, 1997-2006.
  18. Kim, Y.H. Choi, J.H. Kim, S.S. Lee, C.H. Cho, P.K. Lee, Y.B. and Kim, C.M. "A study on the utilization of diagnostic equipments and patient dose for diagnostic radiological procedures in Korea." Korean J Med Phys 16(1) (2005) : 10-15
  19. IAEA "International basic safety standards for protection against ionizing radiation and the safety of radiation source." IAEA Safety Series No. 115, Vienna, (1996) : 279-280
  20. Seeram, E. "Computed Tomography : Physical Principles, Clinical Applications, and Quality Control. Saunders Book Company." British Columbia, (2009) : 202-203