Quantifying right ventricular motion and strain using 3D cine DENSE MRI
نویسندگان
چکیده
منابع مشابه
Quantifying right ventricular motion and strain using 3D cine DENSE MRI
Background The RV is difficult to image because of its thin wall, asymmetric geometry and complex motion. DENSE is a quantitative MRI technique for measuring myocardial displacement and strain at high spatial and temporal resolutions [1,2]. DENSE encodes tissue displacement directly into the image phase, allowing for the direct extraction of motion data at a pixel resolution. A free-breathing n...
متن کاملQuantifying right ventricular motion and deformation using 3D cine DENSE MRI
D. A. Auger, X. zhong, E. Meintjes, F. Epstein, and B. Spottiswoode MRC/UCT Medical Imaging Research Unit, University of Cape Town, Cape Town, Western Cape, South Africa, MR R&D Collaborations, Siemens Medical Solutions, Atlanta, GA, United States, 3Departments of Radiology and Biomedical Engineering, University of Virginia, Charlottesville VA, United States, Radiology, University of Stellenbos...
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........................................................................................................................ II Acknowledgements ...................................................................................................... III Table of
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Background Mechanics of the left ventricle (LV) are important indicators of cardiac function. The role of right ventricular (RV) mechanics is unknown due to the technical limitations of imaging its thin wall and complex geometry and motion. By combining 3D Displacement Encoding with Stimulated Echoes (DENSE) with a local coordinate system analysis, it is possible to quantify RV strain, torsion,...
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Background 3D cine displacement encoding with stimulated echoes (DENSE) directly encodes tissue displacement into MR phase data, providing a comprehensive 3D view of cardiac motion and strain. Unfortunately, 3D cine DENSE motion analysis presently requires manually delineated anatomy. An automated analysis would reduce interobserver variability, improve measurement throughput, and simplify data...
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ژورنال
عنوان ژورنال: Journal of Cardiovascular Magnetic Resonance
سال: 2011
ISSN: 1532-429X
DOI: 10.1186/1532-429x-13-s1-m3