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Abstract #3712

Feasibility of High-resolution Knee Imaging with A Spiral Dixon Technique

Dinghui Wang1, Francis I. Baffour1, Zhiqiang Li2, Tzu-Cheng Chao1, Guruprasad Krishnamoorthy3, and James G. Pipe1
1Department of Radiology, Mayo Clinic, Rochester, MN, United States, 2Department of Neuroradiology, Barrow Neurological Institute, Phoenix, AZ, United States, 3Philips Healthcare, Gainesville, FL, United States

In this study, a spiral Dixon technique has been implemented for knee imaging at 3T with high in-plane resolution of up to 0.4 by 0.4 mm2. Volunteer scans have demonstrated that high quality proton density-weighted, T2-weighted and T1-weighted water and fat images can be obtained using spiral spin-echo and dual spin-echo Dixon methods with comparable total scan time as the conventional Cartesian fast (turbo) spin-echo sequences without Dixon. In addition, spiral radial plane imaging can shorten the scan time by 62% compared to the conventional radial plane method.

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