Table 1.
Benchmarks for Iterative SENSE
R | nksamples | Q | v0 | 1st iter | 2nd…nth |
---|---|---|---|---|---|
1 | 2784 | 0.15 sec | 0.30 sec | 0.08 sec | 0.04 sec |
2 | 1392 | 0.12 sec | 0.24 sec | 0.08 sec | 0.04 sec |
3 | 928 | 0.07 sec | 0.16 sec | 0.09 sec | 0.04 sec |
4 | 696 | 0.09 sec | 0.15 sec | 0.09 sec | 0.04 sec |
6 | 464 | 0.07 sec | 0.14 sec | 0.08 sec | 0.04 sec |
R, Reduction factor; nksamples, number of k-space points gridded, Q, transfer function (convolution matrix) (see Ref. (22)); v0, gridding of sampled k-space data (initial [undersampled] estimate image = gridding recon); 1st iter, first iteration; 2nd …nth iter, all the remaining iterations.