Plaques in the descending aorta: A new risk factor for stroke? Visualization of potential embolization pathways by 4D MRI
Open Access
- 16 November 2007
- journal article
- case report
- Published by Wiley in Journal of Magnetic Resonance Imaging
- Vol. 26 (6), 1651-1655
- https://doi.org/10.1002/jmri.21126
Abstract
The combination of morphologic and hemodynamic information can help in assessing the risk of embolic stroke associated with thrombi and plaques in the descending aorta. For two acute stroke patients, the determination of individual embolic pathways using flow‐sensitive four‐dimensional (4D) MRI are reported. 3D visualization of local flow patterns, i.e., retrograde flow channels originating at the site of the atheroma, in conjunction with exact plaque localization, suggested potential embolization of high‐risk plaques in the descending aorta although they are located downstream from the supraaortic arteries. Our findings indicate that taking plaques of the descending aorta into consideration may help improve the spectrum of pathologies considered as high‐risk sources for brain ischemia. J. Magn. Reson. Imaging 2007.This publication has 12 references indexed in Scilit:
- Time‐resolved 3D MR velocity mapping at 3T: Improved navigator‐gated assessment of vascular anatomy and blood flowJournal of Magnetic Resonance Imaging, 2007
- Aortic Atherosclerotic Disease and StrokeCirculation, 2006
- Time-Resolved 3-Dimensional Magnetic Resonance Velocity Mapping at 3 T Reveals Drastic Changes in Flow Patterns in a Partially Thrombosed Aortic ArchCirculation, 2006
- Therapeutic Strategies After Examination by Transesophageal Echocardiography in 503 Patients With Ischemic StrokeStroke, 2006
- Four‐dimensional magnetic resonance velocity mapping of blood flow patterns in the aorta in patients with atherosclerotic coronary artery disease compared to age‐matched normal subjectsJournal of Magnetic Resonance Imaging, 2004
- Blood flow patterns in the thoracic aorta studied with three‐directional MR velocity mapping: The effects of age and coronary artery diseaseJournal of Magnetic Resonance Imaging, 1997
- Atherosclerotic Disease of the Aortic Arch and the Risk of Ischemic StrokeThe New England Journal of Medicine, 1994
- Algorithms for improving calculated streamlines in 3‐D phase contrast angiographyMagnetic Resonance in Medicine, 1994
- Classification of subtype of acute ischemic stroke. Definitions for use in a multicenter clinical trial. TOAST. Trial of Org 10172 in Acute Stroke Treatment.Stroke, 1993
- Visualizing three‐dimensional flow with simulated streamlines and three‐dimensional phase‐contrast MR imagingJournal of Magnetic Resonance Imaging, 1992