Abstract #3251

Ultrafast multi-slice MRI with segmented spatiotemporal encoding

Ting Zhang¹, Congbo Cai², Lin Chen¹, Jianpan Huang¹, and Shuhui Cai¹

¹Department of Electronic Science, Xiamen University, Xiamen, China, People's Republic of, ²Department of Communication Engineering, Xiamen University, Xiamen, China, People's Republic of

As a recently launched method, spatiotemporally encoded (SPEN) magnetic resonance imaging (MRI) has been broadened from single-slice scan to multi-slice scan. A new single-shot multi-slice full-refocusing SPEN MRI sequence was proposed. By utilizing a segment-selective pulse and a 180° chirp pulse and sequentially acquiring the signals of every slice among the encoded segment, the new method can lower the specific absorption rate (SAR) and improve the image quality compared to the existing one. Experimental results of phantom and in vivo rat brain verified the above conclusion.

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