Browse > Article

Actual Condition of Quality Control of X-ray Imaging System in Primary Care Institution: focused on Gwangju Metropolitan City  

Dong, Kyung-Rae (Department of Radiological Technology, Gwangju Health College University)
Lee, Seun-Joo (Department of Radiological Technology, Gwangju Health College University)
Kweon, Dae-Cheol (Department of Radiologic Science, Shin Heung College University)
Goo, Eun-Hoe (Department of Radiology, Seoul National University Hospital)
Jung, Jae-Eun (Department of Digital Management and Information, Nambu University)
Lee, Kyu-Su (Department of Radiological Science, Hanlyo University)
Publication Information
Journal of Radiation Protection and Research / v.35, no.1, 2010 , pp. 34-42 More about this Journal
Abstract
With the expanded use of radiation in modern medical practices, the most important issue in regards to efforts to reduce individual exposure dose is quality assurance. Therefore in order to study the present condition of quality assurance, the Gwangju Metropolitan City area was divided into five districts each containing ten hospitals. Four experiments were conducted: a reproducibility experiment for kVp, mA, and examination time (sec) intensity of illumination; half-value layer (HVL) measurement; and beam perpendicularity test matching experiment. The tube voltage reproducibility experiment for all fifty hospitals resulted in a 95.33% passing rate and mA and examination time both resulted in a 77.0% passing rate. The passing rate for intensity of illumination was 86.0% and 52.0% for HVL, which was the lowest passing rate of all four factors. For the beam perpendicularity test matching experiment, generally the central flux is matched to within $1.5^{\circ}$. Of all fifty hospitals 30.0% were beyond $3^{\circ}$. The results of the survey showed that 58% responded that they knew about quality assurance cycle. All fifty respondents stated that they have not received any training in regards to quality assurance at their current place of employment. Although quality assurance is making relative progress, the most urgent issue is awareness of the importance of quality assurance. Therefore, the implementation of professional training focusing on safety management and accurate quality assurance of radiation will reduce the exposure to radiation for radiologists and patients and higher quality imaging using less dosage will also be possible.
Keywords
Quality Assurance; Reproducibility; Intensity of Ilumination; HVL; Beam Perpendicularity;
Citations & Related Records
연도 인용수 순위
  • Reference
1 김정민. 정류방식에 따른 진단용 X-선 장치의 출력 비교.대한방사선기술학회지 1997;20(2):34-43.
2 김성철, 이우철, 김정민. X선 진단영역 에너지 측정을 위한 Photo-Diode 선량계(PD-2000)의 개발. 2000;23(2):139-141
3 허준. 정도관리와 화상평가. 대한방사선기술학회지 2000;23(2):3-12
4 김영근, 김영일, 김화곤. 의료영상 정보학 실험. 신광출판사, 2008:105-110.
5 김성수, 허준, 이선숙, 이인자, 김성철. 진단용 X선 장치의 콜리메타의 실태조사. 대한방사선기술 학회지 1994;17(1):65-70.
6 Ramírez-Jimenez FJ, Lopez-Callejas R, Benítez- Read JS, Pacheco-Sotelo JO. Considerations on the measurement of practical peak voltage in diagnostic radiology. Br J Radiol. 2004;77(921): 745-750.   DOI   ScienceOn
7 보건복지가족부: 보건복지가족부령 3-349호. 진단용 X 선발생장치의 안전관리에 관한규칙. 2006.
8 Stanton L, Lightfood MA, Mann S. A Pene_trometer for field kV calibration of diagnostic X-ray machine. Radiology 1966;87:87-98.   DOI
9 Park JH, Im IC, Dong KR, Kang SS. A performance evaluation of diagnostic X-ray unit depends on the hospitals size. J Radiat Prot. 2009;34(1):31-36.
10 Schreiner-Karoussou A. Review of image quality standards to control digital X-ray systems. Radiat. Prot. Dosimetry 2005;117(1-3):23-25.   DOI
11 Baorong Y, Kramer HM, Selbach HJ, Lange B. Experimental determination of practical peak voltage. Br. J. Radiol. 2000;73(870):641-649.   DOI
12 고신관, 안봉선, 장상섭, 최종운, 신영순. 진단용 X 선 발생장치의 X선 출력에 관한 연구. 대한방 사선기술학회지 1995;18(2):61-73.
13 Ardran GM, Crooks HE. Checking Diagnostic X-ray beam quality. Br J Radiol. 1968;41:183-198.
14 보건복지가족부령 제234호. 진단용 방사선 발생장치의 안전관리에 관한 규칙 진단용 방사선발생장치의 검사기준(제4조 제1항 관련). 접지설비확인시험 항목. 2003.