Increasing the SNR and Data Acquisition Efficiency of Displacement-Encoded MRI by the use of TrueFisp Imaging at 3T and TSENSE Parallel Imaging
Pai V, McGorty K, Kim D, Kellman P
New York University
Displacement-encoded MRI is a promising method for quantifying 2D intramyocardial function with relatively high spatial resolution and without the need for explicit tag detection. However, it yields low signal-to-noise ratio (SNR) due to the 50% signal loss inherent to stimulated echoes and due to the SNR limitation imposed by breath-hold acquisition. The subtraction of sub-sampled phase images recovers a portion of the signal loss and eliminates the need for acquiring phase reference images. The purpose of this study was to improve the SNR by the use of TrueFisp imaging at 3T and data acquisition efficiency by the use of TSENSE.