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Evaluation of MRI artifacts caused by metallic dental implants and classification of the dental materials in use

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F06%3APU54971" target="_blank" >RIV/00216305:26220/06:PU54971 - isvavai.cz</a>

  • Alternative codes found

    RIV/68081731:_____/06:00048827 RIV/00216208:11110/06:00005393 RIV/00064165:_____/06:00000820

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Evaluation of MRI artifacts caused by metallic dental implants and classification of the dental materials in use

  • Original language description

    Metallic objects (dental fillings, crowns, fixed bridges etc.), now found in many patients, may become a reason for the patient's ineligibility for MR examination because of safety or image artifact concerns. The severity of the MRI artifacts caused bythese objects depends primarily on the material, shape, position and orientation of the object, MRI method applied, and the location of the tissues of interest. The purpose of this work is to demonstrate the artifacts and describe a method of measuri ing the relevant material properties and the results. A method for the measurement of magnetic susceptibility based on field distortion simulation and field mapping based on MRI is described. Objects made of several materials were tested experimentally and these results were checked against simulated results. It has been found that among the more than 100 dental materials currently in use there are highly paramagnetic materials (Ni-Cr or Co-Cr based alloys), in which B0 inhomogeneity effects

  • Czech name

    Zhodnocení MRI artefaktů způsobených kovovými dentálními implantáty a klasifikace použití těchto dentálních materiálů.

  • Czech description

    Kovové implantáty nacházející se u pacientů způsobují v MRI obrazech artefakty. Tyto artefakty závisí na vodivosti, magnetické susceptibilitě materiálu a jeho umístění. Cílem tohoto příspěvku je ukázat artefakty a popsat metodu měření materiálových vlastností a výsledky. Je popsána metoda měření magnetické susceptibility založená na simulaci deformací pole a mapování pole metodou MRI. Experimentálně bylo testováno více materiálů a výsledky byly provnány se simulací.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    JA - Electronics and optoelectronics

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/NR8110" target="_blank" >NR8110: Dental Alloys and their Compatibility with Magnetic Resonance Imaging</a><br>

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2006

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Measurement Science Review

  • ISSN

    1335-8871

  • e-ISSN

  • Volume of the periodical

    6

  • Issue of the periodical within the volume

    2

  • Country of publishing house

    SK - SLOVAKIA

  • Number of pages

    4

  • Pages from-to

    24-27

  • UT code for WoS article

  • EID of the result in the Scopus database