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Abstract #0274

Contrast Enhanced MRA with Retrospective Selection of Acceleration Factor

Bing Wu1, Richard Watts2, Anthony Butler1, Rick Millane1, Philip Bones1

1Department of Electrical can Computer Engineering, University of Canterbury, Chirstchurch, New Zealand; 2Department of Physics and Astronomy, University of Canterbury, Christchurch, New Zealand

A new time resolved contrast enhanced MR angiography method is proposed, which allows the desired temporal resolution to be selected in post processing and hence achieves an optimal trade-off between temporal resolution and SNR. To further improve the reconstruction SNR, subtraction of the background signal is incorporated to achieve a much smaller object support constraint. The utility of the method is demonstrated using in vivo data sets obtained from a healthy volunteer.