The Safety Assessment of Surrounding Dose on Nuclear Medicine Test by Use The F-18 FDG

F-18 FDG를 이용한 핵의학 검사에서 주변 선량의 안전성 평가

  • Kwak, Byung-Joon (Department of Radiology, Namulsan Boram Hospital) ;
  • Ji, Tae-Jeong (Department of Radiological Science, Kaya University) ;
  • Min, Byung-In (Department of Radiation Applied Engineering, Inje University)
  • 곽병준 (남울산보람병원 영상의학과) ;
  • 지태정 (가야대학교 방사선학과) ;
  • 민병인 (인제대학교 방사선응용공학부)
  • Published : 2009.12.31


Radioactive medicines are used a lot owing to the increase of a PET-CT examination using glucose metabolism useful for the early diagnosis of diseases. Therefore, the spatial dose that is generated from patients and their surroundings causes the patients' guardians and health professional to be exposed to radiation. However, they get unnecessarily exposed to radiation because medical institutions lack in space for isolation and recognition of the examination. This research intended to examine the spatial dose rates by measuring the dose emitted from the patient for 48 hours to whom F-18 FDG was administered. The spatial dose rates that were measured 100cm away from the patient's body after F-18 FDG was injected were $65.88{\mu}$Sv/hr at 60-minute point, $45.13{\mu}$Sv/hr at 90-minute point, $9.88{\mu}$Sv/hr at 6-hour point, and $1.24{\mu}$Sv/hr at 12-hour point. When the dose that the guardian and health professional got was converted into the annual(240-day working) accumulative dose, it was examined that the guardian received 81.56 mSv/yr and health professional received 49.36mSv/yr. In addition, the result has revealed that the dose that the patient received from one time of PET-CT examination was 3.75mSv/yr, which is 1.5 times more when compared with the annual natural radiation exposure dose.


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