Aortic vessel wall magnetic resonance imaging at 3.0 Tesla: a reproducibility study of respiratory navigator gated free-breathing 3D black blood magnetic resonance imaging.

Détails

ID Serval
serval:BIB_90A57ACFD7E9
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Aortic vessel wall magnetic resonance imaging at 3.0 Tesla: a reproducibility study of respiratory navigator gated free-breathing 3D black blood magnetic resonance imaging.
Périodique
Magnetic Resonance In Medicine
Auteur(s)
Roes S.D., Westenberg J.J., Doornbos J., van der Geest R.J., Angelié E., de Roos A., Stuber M.
ISSN
1522-2594[electronic], 0740-3194[linking]
Statut éditorial
Publié
Date de publication
2009
Volume
61
Numéro
1
Pages
35-44
Langue
anglais
Notes
Publication types: Evaluation Studies ; Journal Article ; Research Support, N.I.H., Extramural
Publication Status: ppublish
Résumé
The purpose of this study was to evaluate a free-breathing three-dimensional (3D) dual inversion-recovery (DIR) segmented k-space gradient-echo (turbo field echo [TFE]) imaging sequence at 3T for the quantification of aortic vessel wall dimensions. The effect of respiratory motion suppression on image quality was tested. Furthermore, the reproducibility of the aortic vessel wall measurements was investigated. Seven healthy subjects underwent 3D DIR TFE imaging of the aortic vessel wall with and without respiratory navigator. Subsequently, this sequence with respiratory navigator was performed twice in 10 healthy subjects to test its reproducibility. The signal-to-noise (SNR), contrast-to-noise ratio (CNR), vessel wall sharpness, and vessel wall volume (VWV) were assessed. Data were compared using the paired t-test, and the reproducibility of VWV measurements was evaluated using intraclass correlation coefficients (ICCs). SNR, CNR, and vessel wall sharpness were superior in scans performed with respiratory navigator compared to scans performed without. The ICCs concerning intraobserver, interobserver, and interscan reproducibility were excellent (0.99, 0.94, and 0.95, respectively). In conclusion, respiratory motion suppression substantially improves image quality of 3D DIR TFE imaging of the aortic vessel wall at 3T. Furthermore, this optimized technique with respiratory motion suppression enables assessment of aortic vessel wall dimensions with high reproducibility.
Mots-clé
Adult, Algorithms, Aorta/anatomy & histology, Artifacts, Female, Humans, Image Enhancement/methods, Image Interpretation, Computer-Assisted/methods, Magnetic Resonance Imaging/methods, Male, Reproducibility of Results, Respiratory Mechanics, Respiratory-Gated Imaging Techniques/methods, Sensitivity and Specificity
Pubmed
Web of science
Création de la notice
02/03/2010 17:04
Dernière modification de la notice
03/03/2018 19:26
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