About: Diffusion MRI: Mitigation of Magnetic Field Inhomogeneities

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The article reports on certain artifacts that emerge during the in vitro diffusion-weighted imaging of physical samples. In this context, the authors analyze the influence of magnetic field inhomogeneity, temperature, or eddy currents and consider artifact mitigation procedures. A technique reducing the examined spurious effects was designed, experimentally verified, and denominated as the three measurement method. The technique proved to be useful mainly for the evaluation of a DWI image measured with a diffusion gradient in the z axis, where the relative measurement error decreased to 3.38 % (during measurement using two images, the relative error was greater than 19 %). For small errors within the measurement of diffusion constants of a deionized water sample (< 5 %) it was necessary to select a b-factor value larger than 200106 s.m-2. Temperature stabilization with accuracy better than 0.1 °C during the entire measuring process is a necessary prerequisite for the measurement of biological or material samples with relative accuracy lower than 1 %. The article reports on certain artifacts that emerge during the in vitro diffusion-weighted imaging of physical samples. In this context, the authors analyze the influence of magnetic field inhomogeneity, temperature, or eddy currents and consider artifact mitigation procedures. A technique reducing the examined spurious effects was designed, experimentally verified, and denominated as the three measurement method. The technique proved to be useful mainly for the evaluation of a DWI image measured with a diffusion gradient in the z axis, where the relative measurement error decreased to 3.38 % (during measurement using two images, the relative error was greater than 19 %). For small errors within the measurement of diffusion constants of a deionized water sample (< 5 %) it was necessary to select a b-factor value larger than 200106 s.m-2. Temperature stabilization with accuracy better than 0.1 °C during the entire measuring process is a necessary prerequisite for the measurement of biological or material samples with relative accuracy lower than 1 %. (en)
Title	Diffusion MRI: Mitigation of Magnetic Field Inhomogeneities Diffusion MRI: Mitigation of Magnetic Field Inhomogeneities (en)
skos:prefLabel	Diffusion MRI: Mitigation of Magnetic Field Inhomogeneities Diffusion MRI: Mitigation of Magnetic Field Inhomogeneities (en)
skos:notation	RIV/68081731:_____/12:00385190!RIV13-GA0-68081731
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(ED0017/01/01), P(GAP102/11/0318), P(GAP102/12/1104)
http://linked.open...iv/cisloPeriodika	5
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Bartušek, Karel Dokoupil, Zdeněk
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav přístrojové techniky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	131291
http://linked.open...ai/riv/idVysledku	RIV/68081731:_____/12:00385190
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	correction; diffusion; inhomogeneity; eddy currents; magnetic resonance (en)
http://linked.open.../riv/klicoveSlovo	inhomogeneity correction eddy currents magnetic resonance diffusion
http://linked.open...odStatuVydavatele	SK - Slovenská republika
http://linked.open...ontrolniKodProRIV	[F6F75E43FB6A]
http://linked.open...i/riv/nazevZdroje	Measurement Science Review
http://linked.open...in/vavai/riv/obor	JA
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	APPLICATION LABORATORIES OF ADVANCED MICROTECHNOLOGIES AND NANOTECHNOLOGIES Analysis of metabolism and localization of changes of jaw bone tissue using MR imaging techniques Study of metabolism and localization of high grade glioma using MR imaging techniques
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	12
http://linked.open...iv/tvurceVysledku	Bartušek, Karel Dokoupil, Zdeněk Gescheidtová, E. Marcon, P.
http://linked.open...ain/vavai/riv/wos	000314457800007
issn	1335-8871
number of pages	8 (xsd:int)
http://bibframe.org/vocab/doi	10.2478/v10048-012-0031-8

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