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径向Hadamard编码19F-MRI技术实现PFOB分子炎症示踪的无化学位移伪影高 ...
关键技术方法 研究采用3T临床MRI系统,核心包括:1)基于黄金角螺旋 Phyllotaxis 轨迹的径向采样UTE序列(TE=1.7 ms);2)针对CF 2 Br(+18.1 ppm)、CF 3 (0 ppm)和CF 2 (-40.1 ppm)共振峰的HE编解码算法;3)高斯脉冲(541 Hz带宽)与窗函数sinc脉冲(4000 Hz带宽)分频激发 ...
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