Swallowing, arterial pulsation, and breathing induce motion artifacts in carotid artery MRI. - Université de Bretagne Occidentale Access content directly
Journal Articles Journal of Magnetic Resonance Imaging Year : 2006

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.

Dates and versions

hal-00689138 , version 1 (19-04-2012)

Identifiers

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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, 2006, 23 (3), pp.413-5. ⟨10.1002/jmri.20525⟩. ⟨hal-00689138⟩
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