Korean Journal of Digital Imaging in Medicine (대한디지털의료영상학회논문지)

The Korean Society for Digital Imaging in Medicine (대한디지털의료영상학회)
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Bone Density Spatial Distribution of Radiation Dose Measurement

양방사선 골밀도 측정 장치의 공간산란선량분포측정

  • Kim, Seon-Chil (Department of Radiologic Technology, Daegu Health College) ;
  • Won, Do-Yeon (Department of Radiologic Technology, Daegu Health College) ;
  • Park, Chang-Hee (Department of Radiologic Technology, Daegu Health College) ;
  • Dong, Kyung-Rae (Department of Radiological Technology, Gwangju Health College University)
  • 김선칠 (대구보건대학교 방사선과) ;
  • 원도연 (대구보건대학교 방사선과) ;
  • 박창희 (대구보건대학교 방사선과) ;
  • 동경래 (광주보건대학교 방사선과)
  • Received : 2011.03.14
  • Accepted : 2011.04.29
  • Published : 2011.06.30
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Abstract

In this experiment, how DEXA(Dual-energy X-ray Absorptiometry) bone mineral density was measured using the equipment. In order to maintain the same measurement conditions, bone mineral density measurements of 10 cm thick phantom, with an actual patient at a point when examining the same conditions(100 kVp, 1 mA) and then out to the five doses of radiation and its average was calculated by dividing measured. X-ray dose rate measured at the Research Institute, Sword of the gamma survey meters calibrated MEDCOM Ltd. (Inspector GM counter tube) was used, calibration factor is 1.15. On a horizontal plane around the patient, depending on the distance was significantly reduced dose rate. In addition, orientation $0^{\circ}$ head end was higher in the direction of the highest dose rate, $0^{\circ}$ $180^{\circ}$ direction from the direction towards the higher dose rate reduced to some extent in the direction of all the $120^{\circ}$ were able to identify.

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