Phase-sensitive dual-inversion recovery for accelerated carotid vessel wall imaging.

Détails

ID Serval
serval:BIB_BF455F3372CD
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Phase-sensitive dual-inversion recovery for accelerated carotid vessel wall imaging.
Périodique
Investigative Radiology
Auteur⸱e⸱s
Bonanno G., Brotman D., Stuber M.
ISSN
1536-0210 (Electronic)
ISSN-L
0020-9996
Statut éditorial
Publié
Date de publication
2015
Peer-reviewed
Oui
Volume
50
Numéro
3
Pages
135-143
Langue
anglais
Notes
Publication types: Journal Article Publication Status: ppublish
Résumé
OBJECTIVES: Dual-inversion recovery (DIR) is widely used for magnetic resonance vessel wall imaging. However, optimal contrast may be difficult to obtain and is subject to RR variability. Furthermore, DIR imaging is time-inefficient and multislice acquisitions may lead to prolonged scanning times. Therefore, an extension of phase-sensitive (PS) DIR is proposed for carotid vessel wall imaging.
METHODS: The statistical distribution of the phase signal after DIR is probed to segment carotid lumens and suppress their residual blood signal. The proposed PS-DIR technique was characterized over a broad range of inversion times. Multislice imaging was then implemented by interleaving the acquisition of 3 slices after DIR. Quantitative evaluation was then performed in healthy adult subjects and compared with conventional DIR imaging.
RESULTS: Single-slice PS-DIR provided effective blood-signal suppression over a wide range of inversion times, enhancing wall-lumen contrast and vessel wall conspicuity for carotid arteries. Multislice PS-DIR imaging with effective blood-signal suppression is enabled.
CONCLUSIONS: A variant of the PS-DIR method has successfully been implemented and tested for carotid vessel wall imaging. This technique removes timing constraints related to inversion recovery, enhances wall-lumen contrast, and enables a 3-fold increase in volumetric coverage at no extra cost in scanning time.
Pubmed
Web of science
Création de la notice
13/03/2015 18:31
Dernière modification de la notice
20/08/2019 15:33
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