Kernel Principal Component Analysis of Coil Compression in Parallel Imaging

Figure 3

Reconstruction comparisons of the full 32-channel coronal human brain images. Three methods, the GRAPPA using full 32-channel data, the PCA-GRAPPA, and KPCA-GRAPPA using 20-channel compressed data, were compared, respectively, at the outer reduction factors (ORF) of 4, 5, and 6.