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Abstract #4895

Accelerated, 3D Cine MRI with Stack of Stars k-space Sampling and Self-Navigation of Respiratory Motion for Aortic Valve Visualization.

Nivedita Naresh1, Hassan Haji-Valizadeh2, Bradley D. Allen1, Matthew J. Barrett1, Daniel C. Lee3, Jeremy D. Collins1, James C. Carr1, and Daniel Kim1

1Radiology, Northwestern University, Chicago, IL, United States, 2Biomedical Engineering, Northwestern University, Chicago, IL, United States, 3Cardiology, Northwestern University, Chicago, IL, United States

Aortic valve disease is the most common form of valvular heart disease in the western world and accurate aortic valve visualization is very important for this reason. Accurate imaging of the aortic valve is very critical in grading and diagnosing the severity of the disease. 3D imaging may enable better visualization of the aortic valve as compared to the standard 2D techniques due to both the ability to acquire high resolution volumetric coverage and to visualize in other imaging planes. This study describes the development and evaluation of an accelerated, 3D cine MRI pulse sequence using a combination of stack-of-star k-space sampling and XDGRASP reconstruction.

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