Abstract #0522

T2*-Weighted Imaging with A Distributed Spiral In-Out Trajectory

Dinghui Wang¹, Zhiqiang Li¹, and James G. Pipe¹

¹Imaging Research, Barrow Neurological Institute, Phoenix, AZ, United States

T2*-weighted (T2*w) gradient-echo (GRE) sequences are commonly used in neuroimaging to depict hemorrhage, calcification and iron deposition. Compared to three-dimensional (3D) GRE sequences, 2D GRE sequences are more sensitive to the deleterious T2* effects at air-tissue interfaces. However, 3D Cartesian high-resolution T2*w GRE sequences usually require long scan times, because of the preferred long TRs and TEs. In this study, we implement a fast, scan efficient 3D T2*w imaging method with a distributed spiral in-out trajectory.

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