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4 基于随机采样，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 4 The average values of quantitative indicators of reconstructed images with different algorithms under different acceleration factors based on random sampling

量化指标 SPIRiT PCU-Net PCAU-Net TRE R = 2.5 1.10×10-3 7.8081×10-4 7.7575×10-4 R = 3.3 1.10×10-3 8.3336×10-4 8.1667×10-4 R = 4.0 1.50×10-3 8.7133×10-4 8.9446×10-4 R = 4.6 1.40×10-3 9.4146×10-4 9.0757×10-4 R = 5.0 1.90×10-3 9.8781×10-4 9.9610×10-4 SSIM R = 2.5 0.9629 0.9656 0.9727 R = 3.3 0.9588 0.9642 0.9694 R = 4.0 0.9327 0.9632 0.9720 R = 4.6 0.9419 0.9596 0.9593 R = 5.0 0.9051 0.9536 0.9660 PSNR R = 2.5 33.2773 33.2802 33.9417 R = 3.3 32.7259 32.9076 33.5339 R = 4.0 29.0483 32.7743 33.5606 R = 4.6 27.8330 32.3175 32.4758 R = 5.0 26.6143 31.8950 32.1532