title: Little impact of tsunami-stricken nuclear accident on awareness of radiation dose of cardiac computed tomography: a questionnaire study.
abstract: BACKGROUND
  With the increased use of cardiac computed tomography (CT), radiation dose remains a major issue, although physicians are trying to reduce the substantial risks associated with use of this diagnostic tool. This study was performed to investigate recognition of the level of radiation exposure from cardiac CT and the differences in the level of awareness of radiation before and after the Fukushima nuclear plant accident.
  
  
  METHODS
  We asked 30 physicians who were undergoing training in internal medicine to determine the equivalent doses of radiation for common radiological examinations when a normal chest X-ray is accepted as one unit; questions about the absolute radiation dose of cardiac CT data were also asked.
  
  
  RESULTS
  According to the results, 86.6% of respondents believed the exposure to be 1 mSv at most, and 93.3% thought that the exposure was less than that of 100 chest X-rays. This finding indicates that their perceptions were far lower than the actual amounts. Even after the occurrence of such a large nuclear disaster in Fukushima, there were no significant differences in the same subjects' overall awareness of radiation amounts.
  
  
  CONCLUSIONS
  Even after such a major social issue as the Fukushima nuclear accident, the level of awareness of the accurate radiation amount used in 64-channel multidetector CT (MDCT) by clinical physicians who order this test was not satisfactory. Thus, there is a need for the development of effective continuing education programs to improve awareness of radiation from ionizing radiation devices, including cardiac CT, and emphasis on risk-benefit evaluation based on accurate knowledge during medical training.
authors: Department of Internal Medicine, Konkuk University School of Medicine, 1 Hwayang-dong, Gwangjin-gu, Seoul, South Korea.
authors: Sung Hea
authors: SH
authors: Kim
authors: Hyun-Joong
authors: HJ
authors: Kim
authors: Hyun Kyun
authors: HK
authors: Ki
authors: Eui-Jong
authors: EJ
authors: Chung
authors: Soon Yong
authors: SY
authors: Suh
authors: Seong Woo
authors: SW
authors: Han
authors: Kyu-Hyung
authors: KH
authors: Ryu
mesh_terms: D000328:Adult; D001364:Awareness; D005260:Female; D006321:Heart / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D011829:Radiation Dosage; D018788:Radioactive Hazard Release; D011795:Surveys and Questionnaires; D014057:Tomography, X-Ray Computed / Q000379:methods*; D057192:Tsunamis
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