Improved Complex Convolutional Neural Network Based on SPIRiT and Dense Connection for Parallel MRI Reconstruction

Table 5

Comparisons of average PSNR and SSIM values of the MR images reconstructed by all the models for the fastMRI brain dataset from the 4x and 8x accelerated 1DEU patterns.

Undersampling; patterns	Reconstruction; models	Fourfold AF		Eightfold AF
		PSNR (dB)	SSIM	PSNR (dB)	SSIM
1DEU	SPIRiT	31.314 ± 1.643	0.794 ± 0.076	23.472 ± 1.099	0.620 ± 0.027
	Deepcomplex	34.293 ± 3.592	0.855 ± 0.086	28.234 ± 2.722	0.704 ± 0.048
	DONet	34.209 ± 3.641	0.850 ± 0.086	29.014 ± 2.714	0.714 ± 0.042
	SPIRiT-Net	34.944 ± 3.362	0.860 ± 0.076	30.127 ± 3.222	0.782 ± 0.067

The best values are in bold.