Abstract #3184

MR relaxometry with an interleaved SSFP sequence

Chao Zou¹, Wensha Guo¹, Xin Liu¹, Hairong Zheng¹, and Yiu-Cho Chung¹

¹Paul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institutes of Advanced Technology, CAS, Shenzhen, China, People's Republic of

A novel SSFP sequence with interleaved acquisition for F0, F- and F+ was proposed and applied to T1/T2 relaxometry. The good agreement with analytical solution of SSFP implies that steady state is maintained at different TR. Compared to TESS, TEs of the three echoes can be identical to eliminate T2* effect. The reduced TR decreases susceptibility induced signal void and motion sensitivity. The crusher in slice select direction avoids the unwanted diffusion effect for high resolution imaging. The phantom study shows that the T1/T2 relaxometry results are consistent with the traditional IR-TSE and SE results.

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