title: The Radiation Exposure of Radiographer Related to the Location in C-arm Fluoroscopy-guided Pain Interventions.
abstract: BACKGROUND
  Although a physician may be the nearest to the radiation source during C-arm fluoroscope-guided interventions, the radiographer is also near the fluoroscope. We prospectively investigated the radiation exposure of radiographers relative to their location.
  
  
  METHODS
  The effective dose (ED) was measured with a digital dosimeter on the radiographers' left chest and the side of the table. We observed the location of the radiographers in each procedure related to the mobile support structure of the fluoroscope (Groups A, M and P). Data about age, height, weight, sex, exposure time, radiation absorbed dose (RAD), and the ED at the radiographer's chest and the side of the table was collected.
  
  
  RESULTS
  There were 51 cases for Group A, 116 cases for Group M and 144 cases for Group P. No significant differences were noted in the demographic data such as age, height, weight, and male to female ratio, and exposure time, RAD and ED at the side of the table. Group P had the lowest ED (0.5 ± 0.8 µSv) of all the groups (Group A, 1.6 ± 2.3 µSv; Group M, 1.3 ± 1.9 µSv; P < 0.001). The ED ratio (ED on the radiographer's chest/ED at the side of the table) of Group A was the highest, and the ED radio of Group P was the lowest of all the groups (Group A, 12.2 ± 21.5%; Group M, 5.7 ± 6.5%; Group P, 2.5 ± 6.7%; P < 0.001).
  
  
  CONCLUSIONS
  Radiographers can easily reduce their radiation exposure by changing their position. Two steps behind the mobile support structure can effectively decrease the exposure of radiographers by about 80%.
authors.affiliation: Department of Anesthesiology and Pain Medicine, Konkuk University Medical Center, Seoul, Korea.
authors.forename: Young Jae
authors.initials: YJ
authors.lastname: Chang
authors.affiliation: Department of Anesthesiology and Pain Medicine, Konkuk University Medical Center, Seoul, Korea.
authors.forename: Ah Na
authors.initials: AN
authors.lastname: Kim
authors.affiliation: Department of Anesthesiology and Pain Medicine, Konkuk University Medical Center, Seoul, Korea.
authors.forename: In Su
authors.initials: IS
authors.lastname: Oh
authors.affiliation: Department of Anesthesiology and Pain Medicine, Konkuk University Medical Center, Seoul, Korea.
authors.forename: Nam Sik
authors.initials: NS
authors.lastname: Woo
authors.affiliation: Department of Anesthesiology and Pain Medicine, Konkuk University Medical Center, Seoul, Korea.
authors.forename: Hae Kyoung
authors.initials: HK
authors.lastname: Kim
authors.affiliation: Department of Anesthesiology and Pain Medicine, Konkuk University Medical Center, Seoul, Korea.
authors.forename: Jae Hun
authors.initials: JH
authors.lastname: Kim
keywords: fluoroscope; pain intervention; radiation exposure; radiation safety; radiographer
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