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Abstract #1751

High-performance of Multi-axes DWI sequences using Advanced Charge of Gradient power supply

Sho Kawajiri1, Yuki Takai1, Motohiro Miura1, and Masashi Hori1

1MRI Systems Development Department, Toshiba Medical Systems Corporation, Tochigi, Japan

Optimizing the energy distribution to the 3 axes output sections of the gradient power supply allows attaining high-performance Multi-axes DWI sequences. In this study, we propose an ‘Advanced Charge’ method for preferential energy supply with one axis emitting the largest fraction of output energy of all 3 axes. To realize it, the energy consumption simulation model for gradient power supply and gradient coil was updated accounting for the energy distribution to each individual axis. The new simulation model was implemented in the Advanced Charge control and the feasibility of high-performance of Multi-axes DWI sequences was then confirmed.

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