Yongjun Kwak1, 2, Seunghoon Nam1, 2, Mehmet Akcakaya1, Tamer A. Basha1, Beth Goddu1, Warren J. Manning1, Vahid Tarokh2, Reza Nezafat1
1Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, United States; 2SEAS, Harvard University, Cambridge, MA, United States
One of the major limitations of phase contrast imaging is its long scan time. In this study, we propose an accelerated phase contrast MR approach in which the sparsity of the complex difference (CD) image is used as the sparsifying transform to improve the compressed sensing (CS) reconstruction. The efficacy of the proposed method was demonstrated in both retrospective undersampling and prospective accelerated flow imaging in ascending aorta.