Journal of radiological science and technology (대한방사선기술학회지:방사선기술과학)

Korean Society of Radiological Science (대한방사선과학회)
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Comparison of Shield of Breast, Thyroid, Eyes for Exposure Dose Reduction in Mammography

유방엑스선검사 시 유방, 갑상샘, 안구 피폭선량 감소를 위한 차폐체 비교

  • An, Se-Jeong (Department of Radiology, Gachon University Gil Medical Center) ;
  • Ahn, Sung-Min (Department of Radiological Science, Gachon University)
  • 안세정 (가천대길병원 영상의학과) ;
  • 안성민 (가천대학교 방사선학과)
  • Received : 2021.06.16
  • Accepted : 2021.06.28
  • Published : 2021.06.30
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Abstract

This study was conducted to reduce the exposure dose to the breast and adjacent organs as the number of Mammography increased. Therefore, it has been designed a shield in lead, bismuth + tungsten, and bismuth that does not require to be equipped by the patient, in which each type of shield was compared and analyzed of radiation exposure dose to breast, thyroid, and eye. Using a mammography machine, optically stimulated luminescent dosimeter(OSLD) was inserted to bilateral breast, thyroid, and eye of a dosimetry phantom to measure dose radiated onto the phantom. Shielding device was made in different thickness of 2mm, 3mm, and 5mm and dose evaluation was performed by measuring the dose while using lead, bismuth, and bismuth + tungsten prosthesis. When each shields combined with shielding device, were compared of dose, all showed similar does reduction in the dose to breast, thyroid, and eye in both cranialcaudal and mediolateraloblique view. Based on the current study, bismuth and bismuth + tungsten can replace conventional lead shield and it is anticipated to safely and conveniently reduce radiation exposure to breast, thyroid, and eye with the shield that does not require to be equipped.

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References

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