Journal of radiological science and technology (대한방사선기술학회지:방사선기술과학)

Korean Society of Radiological Science (대한방사선과학회)
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Evaluation of Patient Exposure Dose during Cardiac Electrophysiology Study under Various Conditions

심장 전기생리학 검사 시 조건 변화에 따른 환자 피폭 선량 평가

  • Seong-Bhin Koh (Department of Radiological Science, Gachon University) ;
  • Sung-Min Ahn (Department of Radiological Science, Gachon University)
  • 고성빈 (가천대학교 방사선학과) ;
  • 안성민 (가천대학교 방사선학과)
  • Received : 2023.09.14
  • Accepted : 2023.11.04
  • Published : 2023.12.31
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Abstract

This study used a adult absorption dose phantom (CIRS model 701-G, USA) made of human equivalent material and the vascular imaging equipment Allura Xper FD 20 (Philips, Netherlands). Optically stimulated luminescent dosimeters (OSLD) were inserted into the anatomical positions corresponding to each organ, and the exposure dose was measured. Dose area product (DAP) and air kerma (AK) measured by the dose meter in the equipment were compared. Continuous imaging was performed at two angles for a total of 20 minutes, with a frame per seconds of 3.75 and 7.5 fps and an FOV of 42 cm, 37 cm, and 31 cm, respectively, under the conditions of fluoflavor I, II, and III, each selected for 5 repetitions. This study was found that selecting a lower fps was the most effective way to reduce patient exposure dose, and adjusting the fluoflavor was a good alternative method for reducing patient exposure dose at high fps. Therefore the method of condition change with the greatest dose reduction effect is to set the minimum FPS and can reduce patient exposure dose according to geometric conditions and fluoflavor characteristics.

Keywords

References

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