基于PCAU-Net的快速多通道磁共振成像方法

施伟成,金朝阳,叶铮

Fast Multi-channel Magnetic Resonance Imaging Based on PCAU-Net

SHI Weicheng,JIN Zhaoyang,YE Zheng

表2 基于规则采样，在不同加速因子下，不同算法重建图像的定量指标的平均值

Table 2 The average values of quantitative indicators of reconstructed images with different algorithms under different acceleration factors based on regular sampling

量化指标 GRAPPA PCU-Net PCAU-Net TRE R (N=3, C=32)=2.5 1.10×10-3 8.08×10-4 7.64×10-4 R (N=5, C=32)=3.3 1.80×10-3 9.44×10-4 8.98×10-4 R (N=7, C=32)=4.0 2.40×10-3 9.73×10-4 9.33×10-4 R (N=9, C=32)=4.6 2.60×10-3 1.70×10-3 1.40×10-3 R (N=12, C=32)=5.0 2.90×10-3 1.70×10-3 1.70×10-3 SSIM R (N=3, C=32)=2.5 0.9645 0.9758 0.9787 R (N=5, C=32)=3.3 0.9123 0.9673 0.9701 R (N=7, C=32)=4.0 0.8634 0.9669 0.9688 R (N=9, C=32)=4.6 0.8337 0.9627 0.9543 R (N=12, C=32)=5.0 0.8125 0.9422 0.9424 PSNR R (N=3, C=32)=2.5 30.4921 33.0363 33.5118 R (N=5, C=32)=3.3 26.0461 31.6888 32.1041 R (N=7, C=32)=4.0 23.6166 31.4050 31.7779 R (N=9, C=32)=4.6 22.9207 29.5721 30.7301 R (N=12, C=32)=5.0 22.5559 28.7280 28.7139