Swallowing, arterial pulsation, and breathing induce motion artifacts in carotid artery MRI.

Abstract : PURPOSE: To identify and quantify the potential sources of motion in carotid artery imaging. MATERIALS AND METHODS: Two healthy volunteers and 12 patients (20-75 years old) with atherosclerotic disease were scanned on a Philips Intera 1.5T system. A single-shot balanced-fast field echo (bFFE) sequence was used to acquire real-time axial views of the carotid artery wall (three images per second). A three-step acquisition protocol was performed to analyze the three types of motion (arterial pulsation, breathing, and swallowing) separately. The isocenter carotid artery motion amplitude in either the x or y direction was measured. Radial variation in the carotid lumen between the systolic and diastolic phases was analyzed. Motion frequency was reported for each patient. RESULTS: Significant motion related to arterial pulsation (amplitude = 0.27-0.93 mm, mean = 0.6, SD = 0.19), breathing (amplitude = 0.5-3.6 mm, mean = 1.56, SD = 0.99)), and swallowing (amplitude = 1.4-9.2 mm, mean = 4.7, SD = 2.4) were visualized. CONCLUSION: Pulsation, breathing, and swallowing are sources of significant motion in the carotid artery wall. Such motion should be considered in the future to improve carotid artery image quality.
Type de document :
Article dans une revue
Journal of Magnetic Resonance Imaging, Wiley-Blackwell, 2006, 23 (3), pp.413-5. 〈10.1002/jmri.20525〉
Liste complète des métadonnées

http://hal.univ-brest.fr/hal-00689138
Contributeur : Ghislaine Calvez <>
Soumis le : jeudi 19 avril 2012 - 13:17:56
Dernière modification le : vendredi 8 juin 2018 - 08:00:02

Lien texte intégral

Identifiants

Collections

Citation

Loic Boussel, Gwenael Herigault, Alejandro De La Vega, Michel Nonent, Philippe Charles Douek, et al.. Swallowing, arterial pulsation, and breathing induce motion artifacts in carotid artery MRI.. Journal of Magnetic Resonance Imaging, Wiley-Blackwell, 2006, 23 (3), pp.413-5. 〈10.1002/jmri.20525〉. 〈hal-00689138〉

Partager

Métriques

Consultations de la notice

73