Journal of the Korean Society of Radiology (한국방사선학회논문지)

The Korean Society of Radiology (한국방사선학회)
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A Study of The Correlation of The Area Dose with Residual CT Contrast Media and MRI Contrast Media during The Use of General Imaging Automatic Exposure Control System

일반촬영 자동노출제어장치 사용 시 잔존 CT 조영제와 MRI 조영제에 따른 면적선량의 상관성 연구

  • Hong, Chan-Woo (Department of Radiological Science, Hallym Polytechnic University) ;
  • Park, Jin-Hun (Department of Radiological Science, Hallym Polytechnic University) ;
  • Lee, Jung-Min (Department of Diagnostic Radiology, Hallym University Chuncheon Polytechnic Hospital) ;
  • Seo, Young-Deuk (Department of Diagnostic Radiology, Bundang Seoul National University Hospital)
  • 홍찬우 (한림성심대학교 방사선학과) ;
  • 박진훈 (한림성심대학교 방사선학과) ;
  • 이정민 (한림대학교 춘천성심병원 영상의학과) ;
  • 서영득 (분당서울대학교병원 영상의학과)
  • Received : 2016.11.29
  • Accepted : 2016.12.31
  • Published : 2016.12.31
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Abstract

The purpose of this study is to investigate the effect of CT contrast agent and MRI contrast agent on the area dose in the body when using automatic exposure control system in general radiography. After making rectangular holes in the center of the abdominal thickness paraffin phantom, CT contrast agent and MRI contrast agent were respectively diluted with physiological saline solution for contrast medium dilution ratio of 10:0, 9:1, 8:2, 7:3, 6:4, 5:5, 4:6, 3:7, 2:8, 1:9, 0:10%. Each experiment was set to 78 kVp, 320 mA, which is the proper condition for KUB photography, and thereafter a total of 30 inspections were made for each dilution ratio using an automatic exposure control device, and the area dose corresponding to the dilution ratio of each contrast agent, Average comparison and correlation analysis were performed on the exposure index. As a result, the CT contrast agent and the MRI contrast agent appeared different in area dose according to the dilution ratio(p<0.05), and as the dilution ratio increased, the area dose increased for CT contrast agent and MRI contrast agent(P<0.05). In each test, the exposure index showed the manufacturer's recommendation of 200-800 EI value, and the exposure index and area dose increased as the area dose increased(p<0.05). In conclusion, CT contrast agent and MRI contrast agent confirmed to increase the area dose by general imaging test using all automatic exposure control device. Therefore, it is considered that it is necessary to perform it after the contrast medium has been excreted sufficiently when using usual imaging test after using the contrast agent in CT and MRI examination.

본 연구에서는 일반촬영에서 자동노출제어장치를 이용하여 검사할 때 체내에 잔존하는 CT 조영제와 MRI 조영제가 면적선량에 미치는 영향에 대해 알아보고자 한다. 복부 두께의 파라핀 팬텀 중앙에 사각형의 홀을 만든 후 CT 조영제, MRI 조영제를 각각 식염수 대 조영제 희석 비율, 10:0, 9:1, 8:2, 7:3, 6:4, 5:5, 4:6, 3:7, 2:8, 1:9, 0:10 %의 비율로 희석하였다. 각 실험은 KUB 촬영의 적정 조건인 78kVp, 320mA로 설정 후 자동노출제어장치를 이용하여 희석 비율 당 총 30회씩의 검사를 하였고, 각 조영제의 희석 비율에 따른 면적선량, 노출지수에 대해 평균 비교와 상관분석을 하였다. 그 결과, CT 조영제와 MRI 조영제는 희석 비율에 따라 면적선량이 다르게 나타났고(p<0.05), 희석 비율이 증가함에 따라 CT 조영제와 MRI 조영제는 면적선량이 증가하는 것으로 나타났다(p<0.05). 각 검사에서 노출지수는 제조사 권고 사항인 200-800 EI값을 나타냈으며, 노출지수와 면적선량은 면적선량이 증가할수록 노출지수도 증가하였다(p<0.05). 결론적으로 CT 조영제와 MRI 조영제는 모두 자동노출제어장치를 사용하는 일반촬영 검사에서 면적선량을 증가시키는 것을 확인하였다. 따라서 CT와 MRI 검사에서 조영제를 사용한 후 일반촬영 검사를 할 때에는 조영제가 충분히 배설된 후 시행하여야 할 것으로 사료된다.

Keywords

References

  1. http://www.mfds.go.kr
  2. K. K. Jung, P. K. Cho, "Evaluation of the Low Tube Voltage in the Computed Tomography Scan Technique using a Low Concentration Contrast Agent," Journal of Radiological Science and Technology, Vol. 39, No. 1, pp. 71-79, 2016. https://doi.org/10.17946/JRST.2016.39.1.9
  3. S. J. Lee, S. M. Yu, "A Comparison Study of Signal Intensity of Gadolinium Contrast Media on Fast Spin Echo and Ultra Short Time Echo Pulse Sequence at 3T MRI-Phantom Study," Journal of Radiological Science and Technology, Vol. 38, No. 3, pp. 253-259, 2015. https://doi.org/10.17946/JRST.2015.38.3.09
  4. C. M. Park, P. B. Lee, T. B. Song, J. K. Jang, Y. J. Lee, M. K. Lee, S. C. Lim, "Safety Evaluation of lopamidol Contrast Medium Used for Radiological Examination of a Local Clinic in Korea," Journal of Pharmaceutical Society Korea, Vol. 53, No. 6, pp. 328-333, 2009.
  5. S. H. Cho, M. S. Kim, G. S. Khang, J. A. Kim H. B. Lee, "Recent Advances of Contrast Agent using Biocompatible Organic and Inorganic Nanoparticles," Polymer Science and Technology, Vol. 15, No. 4, pp. 438-448, 2004.
  6. E. J. Lee, "A Study on Perceived Discomfort in Patients Following Cardiac Catheterization," Journal of Korean Academy of Nursing, Vol. 25, No. 1, pp. 124-140, 1995.
  7. K. H. park, B. H. Kim, J. S. Lee, S. Y. Kim, "The Significance of Fast Spin Echo MRI in Patients with Sudden Sensorineural Hearing Loss," Korean Journal of Otolaryngol, Vol. 40, No. 9, pp. 1262-1266, 1997.
  8. S. J. Park, J. I. Shin, "Overview of the Formation, Components, Color, and Abnormal Findings of Urine, " Journal of Korean Society Pediatric Nephrology, Vol. 17, No. 2, pp. 29-34, 2013. https://doi.org/10.3339/jkspn.2013.17.2.29
  9. Y. K. Kim, N. H. Kwon, D. I. Kang, W. Y. Chung, "Clinical Manifestations and Characteristics in Patients with Horseshoe Kidney," Journal of Korean Society Pediatric Nephrology, Vol. 17, No. 2, pp. 73-78, 2013. https://doi.org/10.3339/jkspn.2013.17.2.73
  10. J. S. Lee, S. J. Ko, S. S. Kang, J. H. Kim, D. H. Kim, C. S. Kim, "Quantitative Evaluation of Image Quality using Automatic Exposure Control & Sensitivity in the Digital Chest Image," Journal of The Korea Contents Association, Vol. 13, No. 8, pp. 275-283, 2013.
  11. W. J. Lee, B. S. Ahn, Y. S. Park, "Radiation Dose and Image Quality of Low-dose Protocol in Chest CT : Comparison of Standard-dose Protocol," Journal of Radiation Protection, Vol. 37, No.2, pp. 84-89, 2012. https://doi.org/10.14407/jrp.2012.37.2.084
  12. H. Bak, J. S. Jeon, Y. W. Kim, S. J. Jang, "Dose assessment according to Differences in the Content of Iodine in Contrast Media used in Interventional Procedure," Journal of The Korea Contents Association, Vol. 14, No. 3, pp. 337-345, 2014. https://doi.org/10.5392/JKCA.2014.14.03.337
  13. S. H. Kim, H. Oh, S. E. Lee, S. K. Jo, M. W. Byun, "Effect of Si-Wu-Tang and Si-Jun-Zi-Tang on the Survival of Jejunal Crypt Cells and Hematopoietic Cells in Irradiated Mice," Korean Journal of Food Science and Technology, Vol. 30, No. 4, pp. 888-894, 1998.
  14. T. I. Kim, J. H. Yoon, G. M. Back, J. E. Kim, J. S. Oh, H. J. Lee, "Dose Comparison of Digital Detector Type(Flat Panel Detector) Angiography Equipment-Focusing on absorbed dose of Siemens-Axiom artis dBA vs Philips-Allura FD-20," Korean Society of Cardio-Vascular Interventional Technology, Vol. 10, No. 1, pp. 84-91, 2007.
  15. K. W. Kim, Y. R. Kwon, S. W. Seo, K. T. Kwon, J. Y. Oh, S. Y. son, J. H. Son, J. W. Min, "Comparison of Exposure Dose by Using AEC Mode of Abdomen AP Study in Radiography," Journal of Radiological Science and Technology, Vol. 38, No. 3, pp. 205-211, 2015. https://doi.org/10.17946/JRST.2015.38.3.03
  16. D. K. Kim, K. T. Kim, J. E. Park, J. Y. Hong, J. S. Kim, K. M. Oh, S. H. Nam, "Evaluation of High Absorption Photoconductor for Application to Auto Exposure Control Sensor by Screen Printing Method," Journal of Korean Society Radiology, Vol. 9, No. 2, pp. 67-72, 2015. https://doi.org/10.7742/jksr.2015.9.2.67
  17. J. S. Lee, H. H. Park, "Evaluation on Organ Dose and Image Quality by Changing kVp and Ion Chamber Combination while Taking Digital Chest Lateral Decubitus PA Projection," Journal of The Korea Contents Association, Vol. 15, No. 1, pp. 316-323, 2015. https://doi.org/10.5392/JKCA.2015.15.01.316
  18. Y. O. Kim, Y. H. Seoung, "A Study on Various Automatic Exposure Control System in Multi-Detector Computed Tomography by Using Human Phantom," Journal of The Korea Academia-Industrial cooperation Society, Vol. 13, No. 4, pp. 1714-1720, 2012. https://doi.org/10.5762/KAIS.2012.13.4.1714
  19. J. S. Jung, B. W. Choi, S. H. Kim, Y. M. Kim, J. N. Shim, H. S. Ahn, D. E. Jin, J. S. Lim, S. H. Kang, "Effect of Automatic Exposure Control Marker with Chest Radiography in Radiation Reduction," Journal of Radiological Science and Technology, Vol. 37, No. 3, pp. 177-185, 2014.
  20. K. J. Lee, M. G. Kim, J. W. Lee, H. C. Kim, "Research for The Environmental Optimization of Dose and Image quality in Digital Radiography," Journal of The Institute of Electronics and Information Engineers, Vol. 50, No. 2, pp. 203-209, 2013. https://doi.org/10.5573/ieek.2013.50.2.203
  21. G. R. Kim, C. K. Yang, H. M. Hahn, "Insomnia in Patients with Chronic Renal Failure on Hemodialysis," Sleep Medicine and Psychophysiology, Vol. 6, No. 2, pp. 126-132, 1999.
  22. Y. I. Jo, "Diagnosis of Primary Glomerular Diseases," The Korean Journal of Medicine, Vol. 84, No. 1, pp. 6-12, 2013. https://doi.org/10.3904/kjm.2013.84.1.6
  23. I. J. Kim, "A study on learning needs about altered elimination of spinal cord injury patients : A comparison patients' and nurses' perceptions," Journal of Korean Academy of Nursing, Vol. 24, No. 1, pp. 129-142, 1994.
  24. B. E. Kim, H. Y. Lee, "Effect of Moxibustion on Urinary Incontinence in Stroke Patients -pilot study-," Journal of East-West Nursing Research Institute, Vol. 7, No. 1, 2002.
  25. J. M. Jo, S. S. Shin, J. W. Kim, S. H. Heo, Y. Y. Jeong, H. K. Kang, "Enhancement Pattern of Liver Parenchyma during Late Dynamic Phase Imaging: Comparison between Gd-EOB-DTPA and Gd-DTPA-BMA," Journal of The Korean Society Radiology, Vol. 70, No. 4, pp. 269-277, 2014. https://doi.org/10.3348/jksr.2014.70.4.269