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    AP diameter shows the strongest correlation with CTDI and DLP in abdominal and chest CT.

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    Authors
    Zarb, Francis
    Rainford, Louise
    McEntee, Mark F
    Affiliation
    Radiography, Institute of Health Care, University of Malta, Malta. francis.zarb@um.edu.mt
    Issue Date
    2010
    MeSH
    Adolescent
    Adult
    Aged
    Body Burden
    Computer Simulation
    Female
    Humans
    Male
    Middle Aged
    Models, Theoretical
    Radiation Dosage
    Radiography, Abdominal
    Radiography, Thoracic
    Radiometry
    Statistics as Topic
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    Citation
    AP diameter shows the strongest correlation with CTDI and DLP in abdominal and chest CT. 2010, 140 (3):266-73 Radiat Prot Dosimetry
    Publisher
    Oxford Journals
    Journal
    Radiation protection dosimetry
    URI
    http://hdl.handle.net/10147/129519
    DOI
    10.1093/rpd/ncq115
    PubMed ID
    20332128
    Abstract
    The purpose of this study is to investigate the relationships among cross-sectional diameters, weight and computed tomography (CT) dose descriptors (CTDI and DLP) to identify which is best used as a measure for the establishment of DRLs in CT. Data (gender, weight, cross-sectional diameters, dose descriptors) from 56 adult patients attending for either a CT examination of the abdomen or chest was obtained from two spiral CT units using automatic milliampere modulation. The AP diameter was demonstrated as the main contributing factor influencing the dose in CT (CTDI: r(2) = 0.269, p-value < or =0.001; DLP: r(2) = 0.260, p-value < or =0.001) since it has a greater correlation with radiation dose than body weight and can thus be its substitute in dose-reduction strategies and establishment of DRLs. The advantages of using the AP diameter are that it can easily be measured prior to scanning or retrospectively from previous CT images. However, further studies on the practicality of this approach are recommended.
    Item Type
    Article
    Language
    en
    ISSN
    1742-3406
    ae974a485f413a2113503eed53cd6c53
    10.1093/rpd/ncq115
    Scopus Count
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