Abstract #1890

Reduce multislice excitation RF power by ROI optimization method

Yi-Cheng Hsu¹, Ying-Hua Chu¹, and Fa-Hsuan Lin¹

¹Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan

A new simultaneous multi-slice excitation method was proposed to reduce RF power delivery by only concerning slice profiles within the imaging object. Compared to MultiPINS, our approach used only 79% of the RF energy to the same result (slice thickness = 3mm, MB factor = 5, 4 bandwidth time product, excitation duration 6380 $$$\mu s$$$). This excitation method was experimentally demonstrated in spin-echo EPI with blipped CAIPI acquisition.

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