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Titolo:
Optimization of view ordering for motion artifact suppression
Autore:
Nguyen, TD; Ding, GL; Watts, R; Wang, Y;
Indirizzi:
Cornell Univ, Weill Med Coll, Dept Radiol, New York, NY 10021 USA Cornell Univ New York NY USA 10021 l, Dept Radiol, New York, NY 10021 USA
Titolo Testata:
MAGNETIC RESONANCE IMAGING
fascicolo: 7, volume: 19, anno: 2001,
pagine: 951 - 957
SICI:
0730-725X(200109)19:7<951:OOVOFM>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
CORONARY MR-ANGIOGRAPHY; CARDIAC MOTION; REDUCTION; ARTERIES; CONTRAST;
Keywords:
motion artifacts; motion blurring; view ordering; magnetic resonance imaging;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Wang, Y Cornell Univ, Weill Med Coll, Dept Radiol, 1300 York Ave, New York, NY 10021 USA Cornell Univ 1300 York Ave New York NY USA 10021 ork, NY 10021 USA
Citazione:
T.D. Nguyen et al., "Optimization of view ordering for motion artifact suppression", MAGN RES IM, 19(7), 2001, pp. 951-957

Abstract

Motion artifacts in MRI may be reduced by optimized view ordering. Extensive simulations of view-ordering techniques were performed on high-resolution phantom images to determine the best strategy for distributing motion in k-space. Although not exhaustive, simulation results indicate that minimizing motion at the center of k-space is critical to overall image quality. For 2D imaging, using edge-center-edge view order and setting the readout direction parallel to the direction of the motion produces the sharpest point spread function and the lowest image energy error. For 3D imaging, using anedge-center-edge view order proves to be the optimum choice in general. Given these observations, several important issues regarding the measurement of motion effects are discussed. (C) 2001 Elsevier Science Inc. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/01/20 alle ore 18:27:49