Effective radiation dose of whole-body CT for trauma in Japan: A nationwide questionnaire-based study

DOI
  • MIYAYASU Takayuki
    Kobe Red Cross Hospital, Department of Radiology
  • FUJIMURA Ichiro
    Rinku General Medical Center, Department of Radiology
  • OGURA Keishi
    Sapporo Medical University Hospital, Division of Radiology and Nuclear Medicin
  • TASHIRO Masami
    Fukushima Medical University, School of Health Sciences, Radiological Science
  • ONO Katsunori
    Tohoku University Hospital, Department of Radiological Technology
  • TANAKA Yoshihiro
    National Hospital Organization Mito Medical Center, Department of Radiology
  • OOBO Isamu
    Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital, Department of Radiology
  • AKAGI Noriaki
    Okayama University Hospital, Division of Radiological Technology
  • TAKAMOTO Seiya
    Saiseikai Kumamoto Hospital, Department of Radiology
  • IGARASHI Takayuki
    International University of Health and Welfare Narita Hospital, Department of Radiological Technology

Bibliographic Information

Other Title
  • わが国における外傷全身CTの実効線量
  • ―全国アンケート調査による研究―

Description

<p>Purpose: The purpose of this study is to compare the effective dose of whole-body CT for trauma between Japan and other countries.</p><p>Methods: This study was based on research for radiation exposure dose from whole-body CT for trauma in Japan that we reported in 2019. In this research, we corrected DLPs for CT examinations performed during 4-month period starting in August 2017. We converted DLP to effective doses using the conversion factors of effective dose per DLP.</p><p>Results: The median and maximum effective doses were 54.0 mSv, 8.4 mSv and 170.1 mSv, respectively. The effective dose exceeded 100 mSv in 48 cases (8％). We considered that these results were due to differences in scan protocols and scan phases of contrast enhancement CT.</p><p>Discussion: This study demonstrated that the effective radiation dose of whole-body CT for trauma in Japan is higher than that of other countries. Therefore, we considered that it is necessary to standardize the scan method for trauma whole-body CT in order to reduce radiation dose.</p>

Journal

Keywords

Details 詳細情報について

  • CRID
    1390866293391928960
  • DOI
    10.11240/jsem.28.33
  • ISSN
    21879001
    13450581
  • Text Lang
    ja
  • Data Source
    • JaLC
  • Abstract License Flag
    Disallowed

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