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    Comparison of scattered entrance skin dose burden in MSCT, CBCT, and X-ray for suspected scaphoid injury: Regional dose measurements in a phantom model

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    Publication date
    2022-08-01
    End of Embargo
    2023-02-16
    Author
    Hughes, J.
    Harris, M.
    Snaith, Beverly
    Benn, H.
    Keyword
    CBCT
    MSCT
    Phantom
    Scaphoid
    Scatter
    Rights
    © 2022 Elsevier. Reproduced in accordance with the publisher's self-archiving policy. This manuscript version is made available under the CC-BY-NC-ND 4.0 license.
    Peer-Reviewed
    Yes
    Open Access status
    embargoedAccess
    
    Metadata
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    Abstract
    Introduction: Scaphoid radiography has poor sensitivity for acute fracture detection and often requires repeat delayed imaging. Although magnetic resonance (MR) imaging is considered the gold standard, computed tomography (CT) is often used as an alternative due to ease of access. Cone-Beam CT (CBCT) offers equivalent diagnostic efficacy to Multi Slice CT (MSCT) at reduced dose. We aimed to establish the difference in scattered dose between modalities for scaphoid imaging. Methods: Anatomical regional entrance surface dose measurements were taken at 3 regions on an anthropomorphic torso phantom positioned as a patient to a wrist phantom undergoing scaphoid imaging for three modalities (CBCT, MSCT, four-view projection radiography). Exposure factors were based on audit of clinical exposures. Each dose measurement was repeated three times per anatomical region, modality, exposure setting and projection. Results: Under unpaired T-test CBCT gave significantly lower mean dose at the neck (1.64 vs 18 mGy), chest (2.78 vs 8.01) and abdomen (1.288 vs 2.93) than MSCT (p
    URI
    http://hdl.handle.net/10454/18850
    Version
    Accepted manuscript
    Citation
    Hughes J, Harris M, Snaith B et al (2022) Comparison of scattered entrance skin dose burden in MSCT, CBCT, and X-ray for suspected scaphoid injury: Regional dose measurements in a phantom model. Radiography. 28(3): 811-816.
    Link to publisher’s version
    https://doi.org/10.1016/j.radi.2022.01.009
    Type
    Article
    Notes
    The full-text of this article will be released for public view at the end of the publisher embargo on 16 Feb 2023.
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    Health Studies Publications

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