Abstract #1855

Undersampled Spirals for Real-Time Flow Measurements

Jennifer Edgar¹, Vivek Muthurangu², Andrew Taylor², David Atkinson¹

¹Medical Physics, University College London, Malet Place Engineering Building, London, UK; ²Cardiovascular MR, UCL Institute of Child Health, London, UK

Real-time flow measurements are time efficient and have the ability to measure flow in patients with cardiac arrhythmias. We have developed undersampled spiral flow sequences which allow real-time capabilities. We compared flow results from a reference, gated flow sequence to spiral sequences with uniform density reconstructed with SENSE (R=3, R=4), spiral sequences with variable density reconstructed with SENSE (R=3, R=4) and to spiral sequences with variable density reconstructed with kt-SENSE (R=3, R=4). It was found that in a flow phantom and in 2 volunteers all of the methods tested produced comparable results.