Time-related study on external exposure dose of 2-deoxy-2-[F-18]fluoro-D-glucose PET for workers' safety

Radiol Phys Technol. 2020 Mar;13(1):98-103. doi: 10.1007/s12194-019-00548-0. Epub 2019 Dec 12.


Time-course study of individual dose equivalents of 2-deoxy-2-[F-18]fluoro-D-glucose positron emission tomography (18F-FDG PET) was conducted in different hospital workers, and the daily work duties were analyzed. For the measurements, a semiconductor dosimeter was used. The values at intervals of 1 min and 1 h, the monthly cumulative and daily cumulative doses, and trend graphs were acquired with dedicated software and displayed on the reader. The following radiation workers with duties involving maximum external exposure work were included: doctors making diagnoses (4.8 μSv/procedure), nurses removing injection needles (3.1 μSv/procedure), pharmacists performing quality control tests (2.9 μSv/procedure), nuclear medicine technologists assisting patient positioning (6.5 μSv/procedure), and cyclotron engineers performing daily checks (13.4 μSv/procedure). The results of analysis of daily work duties revealed the influencing factors of external exposure dose. To reduce the external exposure dose, investigators should shorten the patient's contact time with the 18F-FDG source or patient tracer.

Keywords: 18F-FDG PET; Radiation workers; Si solid-state detector.

Publication types

  • Multicenter Study

MeSH terms

  • Cyclotrons
  • Electromagnetic Fields
  • Fluorodeoxyglucose F18
  • Humans
  • Nuclear Medicine
  • Occupational Exposure / analysis
  • Patient Safety
  • Positron-Emission Tomography*
  • Radiation Dosage
  • Radiation Monitoring / instrumentation*
  • Radiation Monitoring / methods
  • Radiometry / methods*
  • Semiconductors
  • Time Factors


  • Fluorodeoxyglucose F18