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Abstract #3782

Non-Contrast Enhanced Pulmonary Vein MRA with Compressed Sensing

Mehmet Akakaya1,2, Peng Hu2, Vahid Tarokh1, Warren J. Manning2, Reza Nezafat2

1Harvard University, Cambridge, MA, United States; 2Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States

Non-contrast pulmonary vein (PV) MR angiography (MRA) is an alternative to the clinical contrast-enhanced technique. We have recently developed a non-contrast PV MRA technique using a sagittal selective inversion pulse. However, the resulting acquisition time is significantly longer than breath-hold contrast-enhanced technique. In this study, we investigate the feasibility of using compressed sensing for accelerating data acquisition in non-contrast PV MRA. We use a distributed compressed sensing technique to reconstruct separate coil images simultaneously. We show that this reconstruction yields good results even at high rates (x10).