基于神经网络拟合的腹部化学交换饱和转移成像
王志超1,张记磊2,赵羽3,华婷4,汤光宇4,李建奇1,*(
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CEST Imaging of the Abdomen with Neural Network Fitting
Zhi-chao WANG1,Ji-lei ZHANG2,Yu ZHAO3,Ting HUA4,Guang-yu TANG4,Jian-qi LI1,*()
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图2. 鸡蛋清的CEST成像.(a) T1加权图；(b)基于神经网络预测得到的B0图；(c)鸡蛋清的矫正后Z谱（红色实线）及进行神经网络预测得到的背景参考Z谱（蓝紫色虚线），绿色与黄色箭头分别指向APT信号与NOE信号提取点；(d)非对称性分析MTRasym图；(e) APT图；(f) NOE图
Fig.2. The CEST imaging results of egg white. (a) T1 weighted image; (b) B0 map based on neural network; (c) The corrected Z-spectrum in egg white (red solid curve) and the background reference Z-spectrum (bluish violet dashed curve) obtained by neural network prediction, where the green arrow and yellow arrow indicate the positions of APT and NOE exchange, respectively; (d) MTRasym map of egg white; (e) APT map; (f) NOE map
