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Abstract #0272

High spatial resolution T2 mapping via multi-shot multiple overlapping-echo detachment imaging

Yang Qizhi1, Wenhua Geng1, Hongjian He2, Jianhui Zhong2,3, Congbo Cai1, Zhong Chen1, and Shuhui Cai1
1Xiamen University, Xiamen, China, 2Zhejiang University, Hangzhou, China, 3University of Rochester, Rochester, NY, United States

Synopsis

Keywords: Quantitative Imaging, Quantitative Imaging, multiple overlapping-echo detachment imagingA multi-shot acquisition strategy is adapted to multiple overlapping-echo detachment imaging (MOLED), implementing T2 mapping with the spatial resolution of submillimeter. Compared with ssh-MOLED (ssh- for single-shot), msh-MOLED (msh- for multi-shot) are more resistant to B0 inhomogeneity, leading to quantitative results with less distortion. Besides, msh-MOLED fulfills a high acquisition efficiency. Accuracy of msh-MOLED was validated on phantoms with a 7T zoological scanner and a 3T whole-body scanner. Higher spatial resolution also alleviates partial volume effect and results in a better structure delineation of msh-MOLED, which was corroborated with in vivo experiments.

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Keywords