Free-running 4D whole-heart self-navigated golden angle MRI: Initial results.

Détails

Ressource 1Demande d'une copie Sous embargo indéterminé.
Etat: Public
Version: de l'auteur
ID Serval
serval:BIB_BB9E726EB412
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Free-running 4D whole-heart self-navigated golden angle MRI: Initial results.
Périodique
Magnetic Resonance In Medicine
Auteur(s)
Coppo S., Piccini D., Bonanno G., Chaptinel J., Vincenti G., Feliciano H., van Heeswijk R.B., Schwitter J., Stuber M.
ISSN
1522-2594 (Electronic)
ISSN-L
0740-3194
Statut éditorial
Publié
Date de publication
2015
Peer-reviewed
Oui
Volume
74
Numéro
5
Pages
1306-1316
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Résumé
PURPOSE: To test the hypothesis that both coronary anatomy and ventricular function can be assessed simultaneously using a single four-dimensional (4D) acquisition.
METHODS: A free-running 4D whole-heart self-navigated acquisition incorporating a golden angle radial trajectory was implemented and tested in vivo in nine healthy adult human subjects. Coronary magnetic resonance angiography (MRA) datasets with retrospective selection of acquisition window width and position were extracted and quantitatively compared with baseline self-navigated electrocardiography (ECG) -triggered coronary MRA. From the 4D datasets, the left-ventricular end-systolic, end-diastolic volumes (ESV & EDV) and ejection fraction (EF) were computed and compared with values obtained from conventional 2D cine images.
RESULTS: The 4D datasets enabled dynamic assessment of the whole heart with isotropic spatial resolution of 1.15 mm(3). Coronary artery image quality was very similar to that of the ECG-triggered baseline scan despite some SNR penalty. A good agreement between 4D and 2D cine imaging was found for EDV, ESV, and EF.
CONCLUSION: The hypothesis that both coronary anatomy and ventricular function can be assessed simultaneously in vivo has been tested positive. Retrospective and flexible acquisition window selection allows to best visualize each coronary segment at its individual time point of quiescence.
Mots-clé
Adult, Algorithms, Cardiac Imaging Techniques/methods, Female, Heart/anatomy & histology, Heart/physiology, Humans, Imaging, Three-Dimensional/methods, Magnetic Resonance Imaging/methods, Male, Signal-To-Noise Ratio, Young Adult
Pubmed
Web of science
Création de la notice
12/12/2014 15:34
Dernière modification de la notice
20/08/2019 16:29
Données d'usage