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Numerical Method of Simulation of Material Influences in MR Tomography

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F08%3APU72680" target="_blank" >RIV/00216305:26220/08:PU72680 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Numerical Method of Simulation of Material Influences in MR Tomography

  • Original language description

    Materials with different electrical conductivity and/or magnetic susceptibility can cause deformation of magnetic field in MR tomograph, resulting in errors in obtained image. Using simulation and experimental verification we can solve the effect of changes in homogeneity of static and HF magnetic fields caused by specimen made from conductive and/or magnetic material in MR tomograph. This paper describes theoretical base and experimental measurement of the magnetic resonance imaging method for susceptibility measurement. Below in this paper we will discuss measuring technique, which is suitable for substances with no signal in MR tomography. The method uses deformation of magnetic induction field in specimen vicinity. For MR purposes it is necessary to immerse specimen into reference medium with measurable MR signal (demineralized water is suitable). Finally, measured data obtained by means of the method using MRI will be shown. Shape of magnetic field changed by specimen impact (reac

  • Czech name

    Numerical Method of Simulation of Material Influences in Mr Tomography

  • Czech description

    Materiály s rozdílnou elektrickou vodivostí nebo magnetickou susceptibilitou způsobují deformace magnetického pole v MR tomografu, což vede k chybám v obraze. Pomocí simulace a experimentálního ověření můžeme ověřit efekt změny homogenity statického a vfmagnetického pole způsobeného vlivem vlastností materiálů vzorku. Článek popisuje teoretické základy a experimentální výsledky zobrazovací MR metody pro měření susceptibility. Popsaná technika je vhodná i pro materiály nevykazující MR aktivitu, využíváměření změn pole v okolí vzorku. Z důvodu MR zobrazování je nezbytné vzorek obklopit referenčním médiem - např. vodou. Změna pole v okolí vzorku (tzv. reakční pole) je měřena pomocí metody gradientního echa (GE).

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/KJB208130603" target="_blank" >KJB208130603: Measurement and simulation of material susceptibility and conductivity influences in MR tomography</a><br>

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2008

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Progress In Electromagnetics Research Letters

  • ISSN

    1937-6480

  • e-ISSN

  • Volume of the periodical

    1

  • Issue of the periodical within the volume

    1

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    6

  • Pages from-to

  • UT code for WoS article

  • EID of the result in the Scopus database