Inherently self-calibrating non-Cartesian parallel imaging.

Détails

ID Serval
serval:BIB_70EE0E2462E2
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Inherently self-calibrating non-Cartesian parallel imaging.
Périodique
Magnetic Resonance In Medicine
Auteur⸱e⸱s
Yeh E.N., Stuber M., McKenzie C.A., Botnar R.M., Leiner T., Ohliger M.A., Grant A.K., Willig-Onwuachi J.D., Sodickson D.K.
ISSN
0740-3194[print], 0740-3194[linking]
Statut éditorial
Publié
Date de publication
2005
Volume
54
Numéro
1
Pages
1-8
Langue
anglais
Notes
Publication types: Comparative Study ; Evaluation Studies ; Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, P.H.S. ; Validation Studies
Publication Status: ppublish
Résumé
The use of self-calibrating techniques in parallel magnetic resonance imaging eliminates the need for coil sensitivity calibration scans and avoids potential mismatches between calibration scans and subsequent accelerated acquisitions (e.g., as a result of patient motion). Most examples of self-calibrating Cartesian parallel imaging techniques have required the use of modified k-space trajectories that are densely sampled at the center and more sparsely sampled in the periphery. However, spiral and radial trajectories offer inherent self-calibrating characteristics because of their densely sampled center. At no additional cost in acquisition time and with no modification in scanning protocols, in vivo coil sensitivity maps may be extracted from the densely sampled central region of k-space. This work demonstrates the feasibility of self-calibrated spiral and radial parallel imaging using a previously described iterative non-Cartesian sensitivity encoding algorithm.
Mots-clé
Algorithms, Artifacts, Artificial Intelligence, Calibration, Coronary Vessels/anatomy & histology, Equipment Failure Analysis/methods, Feasibility Studies, Humans, Image Enhancement/methods, Image Interpretation, Computer-Assisted/methods, Imaging, Three-Dimensional/methods, Information Storage and Retrieval/methods, Magnetic Resonance Angiography/instrumentation, Magnetic Resonance Angiography/methods, Reproducibility of Results, Sensitivity and Specificity
Pubmed
Web of science
Open Access
Oui
Création de la notice
02/03/2010 17:04
Dernière modification de la notice
20/08/2019 15:29
Données d'usage