Physician-received scatter radiation with angiography systems used for interventional radiology: Comparison among many x-ray systems

Koichi Chida, Yoshiaki Morishima, Youhei Inaba, Masaaki Taura, Ayako Ebata, Ken Takeda, Hirotaka Shimura, Masayuki Zuguchi

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Radiation protection for interventional radiology (IR) physicians is very important. Current IR X-ray systems tend to use flat-panel detectors (FPDs) rather than image intensifiers (IIs). The purpose of this study is to test the hypothesis that there is no difference in physician-received scatter radiation (PRSR) between FPD systems and II systems. This study examined 20 X-ray systems in 15 cardiac catheterisation laboratories (11 used a FPD and 9 used an II). The PRSR with digital cineangiography and fluoroscopy were compared among the 20 X-ray systems using a phantom and a solid-state-detector electronic pocket dosemeter. The maximum PRSR exceeded the minimum PRSR by ~12-fold for cineangiography and ~9-fold for fluoroscopy. For both fluoroscopy and digital cineangiography, the PRSR had a statistically significant positive correlation with the entrance surface dose (fluoroscopy, r = 0.87; cineangiography, r = 0.86). There was no statistically significant difference between the average PRSR of FPDs and IIs during either digital cineangiography or fluoroscopy. There is a wide range of PRSR among the radiography systems evaluated. The PRSR correlated well with the entrance surface dose of the phantom in 20 X-ray units used for IR. Hence, decreasing the dose to the patient will also decrease the dose to staff.

Original languageEnglish
Article numberncr312
Pages (from-to)410-416
Number of pages7
JournalRadiation protection dosimetry
Volume149
Issue number4
DOIs
Publication statusPublished - 2012 May 1

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology
  • Radiation
  • Radiology Nuclear Medicine and imaging
  • Public Health, Environmental and Occupational Health

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