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Abstract #0841

A whole-blade turboPROP technique with motion correction for rapid and robust DWI

Zhiqiang Li1, Melvyn B Ooi2, and John P Karis1
1Neuroradiology, Barrow Neurological Institute, Phoenix, AZ, United States, 2Philips Healthcare, Gainesville, FL, United States

DW-MRI is an invaluable technique for the diagnosis of neurological disorders. ssEPI is time efficient but suffers from geometric distortions. DW-PROPELLER and its variants, including turboPROP, have been proposed for generating distortion-free images. This project proposes a new whole-blade acquisition mode with phase correction in reconstruction to increase the blade width and consequently reduce the scan time by a factor of ~2, relative to the original turboPROP. Furthermore, the increased blade width allows for robust motion correction, which was typically not performed in PROPELLER-based DWI. In vivo results demonstrate advantages over ssEPI, and recently released product msEPI and SPLICE-PROPELLER.

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