Journal of radiological science and technology (대한방사선기술학회지:방사선기술과학)

Korean Society of Radiological Science (대한방사선과학회)
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Usability Evaluation by Development of IRIS Type X-ray Collimator

조리개형 X선 콜리메이터의 개발에 따른 유용성 평가

  • 강인석 (한서대학교 보건의료학과) ;
  • 박재윤 (인천기독병원 영상의학과) ;
  • 임청환 (한서대학교 보건의료학과) ;
  • 최재호 (안산대학교 방사선과) ;
  • 정홍량 (한서대학교 보건의료학과)
  • Received : 2018.04.05
  • Accepted : 2018.06.05
  • Published : 2018.06.30
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Abstract

In this study, we evaluated the DAP(Dose Area Product) reduction effect of the newly developed IRIS collimator by measuring the DAP of the Rectangle collimator and the IRIS collimator depending on the field, SID(Source to Image recpetor Distance) change, and AEC mode use. The results were as follows. The IRIS collimator decreased DAP by 34.91, 29.33, and 29.04%, respectively, compared to the Rectangle collimator when the field was increased to $8{\times}8$, $12{\times}12$, $16{\times}16inch$. And also, when the SID was increased to 100, 120 and 140 cm, the IRIS collimator decreased DAP by 10.73, 33.68 and 46.22%, respectively, compared to the Rectangle collimator. In AEC mode and none-AEC mode, DAP in IRIS collimator was reduced by 32.71 and 21.69%, respectively, compared with the Rectangle type. The IRIS collimator can reduce DAP by 29.62% on average compared to Rectangle type, which is statistically significant. These results suggest that the newly developed IRIS collimator can be used in medical field to alleviate radiation exposure.

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References

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