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Abstract #0759

Spiral Time of Flight with Sliding Slice Localized Quadratic Encoding

Dinghui Wang1, Melvyn B Ooi2, Nicholas R Zwart3, Zhiqiang Li4, and James G Pipe1

1Department of Radiology, Mayo Clinic, Rochester, MN, United States, 2Philips Healthcare, Gainesville, FL, United States, 3Hyperfine Research, Guilford, CT, United States, 4Department of Neuroradiology, Barrow Neurological Institute, Phoenix, AZ, United States

In this work, a fast and flexible TOF technique is proposed by applying sliding-slice spiral acquisition with localized quadratic encoding RF pulse. Due to the fast acquisition, water-fat separation and deblurring can also be applied using data from two TEs to improve the visualization over the conventional out of phase method. Volunteer scans in head and neck have demonstrated that the proposed method is 0.4 - 2 times faster than the conventional 2D Cartesian TOF and 3D Cartesian multi-slab TOF, yet provides slightly better visibility of the flow.

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