Abstract #3240

Accelerated Cardiac Perfusion MRI with Radial k-space Sampling, Compressed Sensing, and KWIC filtering to Enable Qualitative and Quantitative Analyses of Perfusion.

Nivedita K. Naresh¹, Hassan H. Valizadeh², KyungPyo Hong¹, Amir A. Rahsepar¹, Daniele Procissi¹, Jeremy D. Collins¹, James C Carr^1,3,4, Daniel C. Lee^1,4, and Daniel Kim¹

¹Radiology, Northwestern University, Chicago, IL, United States, ²Biomedical Engineering, Northwestern University, Chicago, IL, United States, ³McCormick School of Engineering, Northwestern University, Chicago, IL, United States, ⁴Medicine, Northwestern University, Chicago, IL, United States

First-pass cardiac perfusion MRI is widely used as an important diagnostic tool for cardiovascular disease and extensive efforts are focused on improving spatial coverage, minimizing dark rim artifacts and quantifying absolute myocardial blood flow. In this study, we used a combination of radial k-space sampling, compressed sensing, and KWIC filtering to address these issues. Compared to the conventional perfusion technique, the accelerated method improved spatial coverage, minimized dark rim artifact and enabled quantification of myocardial blood flow.

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