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Extended 3D approach for quantification of abnormal ascending aortic flow
- Source :
- Magnetic resonance imaging, vol 33, iss 5, Magn Reson Imaging, Magn Reson Imaging, 2015, 33 (5), pp.695--700
- Publication Year :
- 2015
- Publisher :
- eScholarship, University of California, 2015.
-
Abstract
- BackgroundFlow displacement quantifies eccentric flow, a potential risk factor for aneurysms in the ascending aorta, but only at a single anatomic location. The aim of this study is to extend flow displacement analysis to 3D in patients with aortic and aortic valve pathologies.Methods43 individuals were studied with 4DFlow MRI in 6 groups: healthy, tricuspid aortic valve (TAV) with aortic stenosis (AS) but no dilatation, TAV with dilatation but no AS, and TAV with both AS and dilatation, BAV without AS or dilatation, BAV without AS but with dilation. The protocol was approved by our institutional review board, and informed consent was obtained. Flow displacement was calculated for multiple planes along the ascending aorta, and 2D and 3D analyses were compared.ResultsGood correlation was found between 2D flow displacement and both maximum and average 3D values (r>0.8). Healthy controls had significantly lower flow displacement values with all approaches (p
- Subjects :
- Adult
Male
Clinical Sciences
Heart Valve Diseases
Biomedical Engineering
Cardiovascular
Imaging
Congenital
Bicuspid Aortic Valve Disease
[INFO.INFO-IM]Computer Science [cs]/Medical Imaging
Humans
Aorta
Heart Defects
Aged
Eccentric jets
Aortic Valve Stenosis
BAV
Middle Aged
Magnetic Resonance Imaging
Valves
Nuclear Medicine & Medical Imaging
Aortic Valve
Three-Dimensional
Female
Cognitive Sciences
Blood Flow Velocity
MRI
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- Magnetic resonance imaging, vol 33, iss 5, Magn Reson Imaging, Magn Reson Imaging, 2015, 33 (5), pp.695--700
- Accession number :
- edsair.dedup.wf.001..3630f7aaf7b784045f2872c317fac5f5