Phase Correction for 3D Fast Spin Echo Imaging With Compressed Sensing

Fast spin echo imaging plays a central role in clinical imaging. Eddy current and other factors, however, can introduce phase error in FSE sequences, which causes the violation to CPMG condition and result in image artifacts. The existing phase correction method works well for 2D FSE, which assumes a linear phase error along readout direction. However, to extend this approach to 3DFSE, we may need assume a linear phase error along both readout and slice direction, which may not always be the case. Data acquisition with phase cycling can be used to address this problem at the cost of doubled scan time. In this work, we investigated compressed sensing acceleration of data acquisition for 3DFSE phase correction using phase cycling.

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