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The radiation burden of radiological investigations
  1. W Mazrani,
  2. K McHugh,
  3. P J Marsden
  1. Radiology Department, Great Ormond Street Hospital for Children, London, UK
  1. Waseem Mazrani, Radiology Department, Great Ormond Street Hospital for Children, London WC1N 3JH, UK; wmazrani{at}hotmail.com

Abstract

The harmful effects of ionising radiation are widely acknowledged. It has been reported that young children, particularly girls, have a higher sensitivity to radiation than adults. However, the exact detrimental effects of radiation, particularly at the low doses used in routine diagnostic radiography, are unknown and the subject of much controversy. Computed tomography (CT) accounts for about 9% of all radiological examinations but is responsible for 47% of medical radiation dose. Approximately 11% of CT examinations performed are in the paediatric population, but the long-term hazards of CT are unknown.

  • radiation
  • paediatrics
  • computed tomography
  • nuclear medicine
  • radiography

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Footnotes

  • Competing interests: None.

  • Abbreviations:
    CNR
    contrast-to-noise ratio
    CR
    computed radiography
    CT
    computed tomography
    DAP
    dose area product
    DMSA
    dimercaptosuccinic acid
    DR
    direct radiography
    IRMER
    Ionising Radiation (Medical Exposure) Regulations 2000
    IRR99
    Ionising Radiations Regulations 1999
    LNT
    linear, no threshold
    MIBG
    metaiodobenzylguanidine
    MSCT
    multi-slice CT
    PET
    positron emission tomography
    SSCT
    single-slice CT

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