Flexible reduced field of view magnetic resonance imaging based on single-shot spatiotemporally encoded technique
Li Jinga) , Cai Cong-Bob) , Chen Lina) , Chen Yingc) , Qu Xiao-Boa) , Cai Shu-Hui†a) 
Flexible reduced field of view magnetic resonance imaging based on single-shot spatiotemporally encoded technique |
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Li Jing
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| Imaging results of a coronal plane of an in vivo rat head. Slice thickness = 2 mm, imaging matrix size = 256 × 256, FOV = 50 (horizontal) × 60 (vertical) mm2. (a) Reference multi-shot fast spin-echo image (sampling data matrix size = 256 × 256, sequence execution time = 544 s). (b) EPI image (sampling data matrix size = 64 × 64, sequence execution time = 49.6 ms). (c) SPEN image ( P = 1). (d) SPEN image obtained with flexible rFOV method for two ROIs ( P = 0.7, each ROI L yd = 20 mm). Common parameters for SPEN imaging: T exc = 27.1 ms, Δ O Hz = 7.1 kHz, sampling data matrix size = 64 × 64, sequence execution time = 59.1 ms, R = 0.26 kHz/ms, and acquisition bandwidth along readout dimension = 250 kHz. |
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