Correction of through-plane deformation artifacts in stimulated echo acquisition mode cardiac imaging.

Détails

ID Serval
serval:BIB_9F5845A1EE74
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Correction of through-plane deformation artifacts in stimulated echo acquisition mode cardiac imaging.
Périodique
Magnetic Resonance In Medicine
Auteur⸱e⸱s
Fahmy A.S., Pan L., Stuber M., Osman N.F.
ISSN
0740-3194[print], 0740-3194[linking]
Statut éditorial
Publié
Date de publication
2006
Volume
55
Numéro
2
Pages
404-412
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't Publication Status: ppublish
Résumé
Attempts to use a stimulated echo acquisition mode (STEAM) in cardiac imaging are impeded by imaging artifacts that result in signal attenuation and nulling of the cardiac tissue. In this work, we present a method to reduce this artifact by acquiring two sets of stimulated echo images with two different demodulations. The resulting two images are combined to recover the signal loss and weighted to compensate for possible deformation-dependent intensity variation. Numerical simulations were used to validate the theory. Also, the proposed correction method was applied to in vivo imaging of normal volunteers (n = 6) and animal models with induced infarction (n = 3). The results show the ability of the method to recover the lost myocardial signal and generate artifact-free black-blood cardiac images.
Mots-clé
Animals, Artifacts, Computer Simulation, Contrast Media, Dogs, Gadolinium DTPA, Heart/anatomy & histology, Humans, Image Enhancement/methods, Magnetic Resonance Imaging/methods, Myocardial Infarction/pathology
Pubmed
Web of science
Création de la notice
02/03/2010 17:04
Dernière modification de la notice
20/08/2019 16:05
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