Abstract #0462

Joint Processing of Highly Accelerated Multi-Directional PC-MRI Data Using ReVEAL

Adam Rich¹, Lee C. Potter¹, Ning Jin², Juliana Serafim da Silveira³, Orlando P. Simonetti³, and Rizwan Ahmad³

¹Electrical and Computer Engineering, The Ohio State University, Columbus, OH, United States, ²Siemens Medical Solutions, The Ohio State University, Columbus, OH, United States, ³Dorthy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH, United States

Phase-contrast magnetic resonance is a powerful tool for study of cardiac flow, but clinical application is limited to planar imaging of one velocity component. This abstract demonstrates three-directional flow imaging using a single breath-hold acquisition. Imaging is accomplished by jointly processing all encodings and frames; Bayesian reconstruction leverages image structure via both wavelet compression and statistical relations among velocity encoded images. Digital phantom results show accurate estimation of stroke volume and peak velocity, with significant reductions in bias and variance, as well as over 30% increase in Pearson correlation coefficient, compared to L1-SENSE. In vivo results demonstrate repeatable flow estimation.

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