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Abstract #2705

3D Cones acquisition for human extremities using a 1.5 T compact superconducting magnet and unshielded gradient coil

Ayana Setoi1 and Katsumi Kose1

1University of Tsukuba, Tsukuba, Japan

We developed 3D Cones sequences for human extremities on a 1.5 T MRI system using a compact superconducting magnet (280 mm bore) equipped with an unshielded gradient coil. Linear eddy fields were measured using a spherical phantom and eddy current effects on the 3D Cones sequences were evaluated using a 3D water phantom. As a result, effects of higher-order eddy fields proportional to z2x and z2y spatial distributions were clearly observed. The 3D Cones sequences were applied to UTE imaging of a porcine hoof sample and a human forearm, which demonstrated their promise in UTE imaging.

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