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    Quality control in cone-beam computed tomography (CBCT) EFOMP-ESTRO-IAEA protocol (summary report).

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    Authors
    de Las Heras Gala, H
    Torresin, A
    Dasu, A
    Rampado, O
    Delis, H
    Hernández Girón, I
    Theodorakou, Chrysoula
    Andersson, J
    Holroyd, J
    Nilsson, M
    Edyvean, S
    Gershan, V
    Hadid-Beurrier, L
    Hoog, C
    Delpon, G
    Sancho Kolster, I
    Peterlin, P
    Garayoa Roca, J
    Caprile, P
    Zervides, C
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    Affiliation
    QUART GmbH & Helmholtz Zentrum Munchen, Munich, Germany
    Issue Date
    2017-06-08
    
    Metadata
    Show full item record
    Abstract
    The aim of the guideline presented in this article is to unify the test parameters for image quality evaluation and radiation output in all types of cone-beam computed tomography (CBCT) systems. The applications of CBCT spread over dental and interventional radiology, guided surgery and radiotherapy. The chosen tests provide the means to objectively evaluate the performance and monitor the constancy of the imaging chain. Experience from all involved associations has been collected to achieve a consensus that is rigorous and helpful for the practice. The guideline recommends to assess image quality in terms of uniformity, geometrical precision, voxel density values (or Hounsfield units where available), noise, low contrast resolution and spatial resolution measurements. These tests usually require the use of a phantom and evaluation software. Radiation output can be determined with a kerma-area product meter attached to the tube case. Alternatively, a solid state dosimeter attached to the flat panel and a simple geometric relationship can be used to calculate the dose to the isocentre. Summary tables including action levels and recommended frequencies for each test, as well as relevant references, are provided. If the radiation output or image quality deviates from expected values, or exceeds documented action levels for a given system, a more in depth system analysis (using conventional tests) and corrective maintenance work may be required.
    Citation
    Quality control in cone-beam computed tomography (CBCT) EFOMP-ESTRO-IAEA protocol (summary report). 2017 Phys Med
    Journal
    Physica Medica
    URI
    http://hdl.handle.net/10541/620437
    DOI
    10.1016/j.ejmp.2017.05.069
    PubMed ID
    28602688
    Type
    Article
    Language
    en
    ISSN
    1724-191X
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.ejmp.2017.05.069
    Scopus Count
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