About: Parallel MRI Reconstruction Using B-Spline Approximation

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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	Není k dispozici (cs) Parallel MRI (pMRI) is a way to increase the speed of the MRI acquisition by sampling more sparsely in the k-space. The decrease of the data amount causing aliasing is compensated by a simultaneous use of several coils with distinct spatial sensitivities. We propose a new algorithm that estimates the coefficients of the linear reconstruction transformation directly without estimating the coil sensitivity maps first. The coefficients are approximated by B-spline functions. This reduces the number of variables and thus speeds up the estimation. It also makes the method more robust to noise. Tests were performed on phantom images. The proposed method had lower square difference error than two commercially used methods GRAPPA and mSENSE. Parallel MRI (pMRI) is a way to increase the speed of the MRI acquisition by sampling more sparsely in the k-space. The decrease of the data amount causing aliasing is compensated by a simultaneous use of several coils with distinct spatial sensitivities. We propose a new algorithm that estimates the coefficients of the linear reconstruction transformation directly without estimating the coil sensitivity maps first. The coefficients are approximated by B-spline functions. This reduces the number of variables and thus speeds up the estimation. It also makes the method more robust to noise. Tests were performed on phantom images. The proposed method had lower square difference error than two commercially used methods GRAPPA and mSENSE. (en)
Title	Parallel MRI Reconstruction Using B-Spline Approximation Není k dispozici (cs) Parallel MRI Reconstruction Using B-Spline Approximation (en)
skos:prefLabel	Parallel MRI Reconstruction Using B-Spline Approximation Není k dispozici (cs) Parallel MRI Reconstruction Using B-Spline Approximation (en)
skos:notation	RIV/68407700:21230/05:03109944!RIV06-AV0-21230___
http://linked.open.../vavai/riv/strany	2421 ; 2421
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(1ET101050403)
http://linked.open...vai/riv/dodaniDat	2006
http://linked.open...aciTvurceVysledku	Kybic, Jan Hlaváč, Václav Petr, Jan
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta elektrotechnická
http://linked.open...dnocenehoVysledku	535391
http://linked.open...ai/riv/idVysledku	RIV/68407700:21230/05:03109944
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	B-splines; MRI; parallel MRI (en)
http://linked.open.../riv/klicoveSlovo	MRI B-splines parallel MRI
http://linked.open...ontrolniKodProRIV	[38BC4313B3C0]
http://linked.open...v/mistoKonaniAkce	Miami
http://linked.open...i/riv/mistoVydani	Berkeley
http://linked.open...i/riv/nazevZdroje	ISMRM '05: Proceedings of the 13th Scientific Meeting and Exhibition of International Society for Magnetic Resonance in Medicine
http://linked.open...in/vavai/riv/obor	JD
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Artificial inteligence methods in diagnostics from medical images
http://linked.open...UplatneniVysledku	2005
http://linked.open...iv/tvurceVysledku	Hlaváč, Václav Kybic, Jan Petr, Jan Müller, S. Bock, M.
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2005-05-07 (xsd:date)
issn	1545-4428
number of pages	1 (xsd:int)
http://purl.org/ne...btex#hasPublisher	International Society for Magnetic Resonance in Medicine
http://localhost/t...ganizacniJednotka	21230
is http://linked.open...avai/riv/vysledek of	Parallel MRI Reconstruction Using B-Spline Approximation

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