Abstract #3642

Optimization of DWI sequences using a dynamic consumption energy simulation model for large bore Actively Shielded Gradient Coil

Sho Kawajiri¹, Naoyuki Furudate¹, Yutaka Machii¹, Motohiro Miura¹, and Masashi Hori¹

¹MRI development department, Toshiba Medical Systems corp., Otawara, Tochigi, Japan

Estimating the accurate consumption energy of gradient power supply and gradient coil leads to advantage on an optimized power supply for environment and to achieve an economical system. In addition, providing sufficient power supply permits a flexibility in pulse sequences. The gradient power energy consumption depends on the gradient waveform. Because the gradient coil resistance is affected by frequency of gradient waveform, a simulation model is proposed to estimate the dynamic consumption energy with equivalent circuit for the gradient coil and evaluated actual and simulated consumption energy of DWI imaging with various conditions to ensure accuracy of the model.

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