Abstract #2982

Spectral analysis enhances the detectability of rotary saturation contrast

Jingwei Sheng¹, Yuhui Chai¹, Bing Wu², Yang Fan², and Jia-Hong Gao¹

¹Center for MRI Research, Peking University, Beijing, China, People's Republic of, ²GE Healthcare MR Research China, Beijing, China, People's Republic of

Traditional rotary saturation based methods requires triggered phases to create a robust signal change, which may not be satisfied in practical application. In this work, based on the analysis of magnetization in the double rotating frame, we proposed detecting the signal fluctuations of proposed SLOE method by manipulating TRs, which needs no triggering. Further, a spectral statistical test in the frequency domain was proposed and verified, which featured an enhanced detection sensitivity than that of deviation test.

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