TABLE I.
The Venc, Intensity Based Signal-to-Noise Ratio (SNRI), Number of Wrapped Voxels (NW), Velocity-to-Noise Ratio (VNR), Mean WSS Magnitude, and Relative WSS Magnitude Error (ϵWSS) for the Each in vitro Poiseuille Flow Dataset With CWLS and 4D Lap Unwrapping
| DV acquisitions | A | B | C | A | B | C | |
|---|---|---|---|---|---|---|---|
| venc (cm/s) | 4 | 6 | 8 | 8 | 12 | 16 | |
| TE (ms) | 7.47 | 6.47 | 5.87 | 7.47 | 6.47 | 5.87 | |
| TR (ms) | 10.2 | 9.2 | 8.6 | 10.2 | 9.2 | 8.6 | |
| SNRI | 60.9 | 54.1 | 47.9 | 60.9 | 54.1 | 47.9 | |
| Nw | 41919 | 32819 | 24128 | 23434 | 3925 | 1 | |
| Nw | CWLS | 1 | 0 | 0 | 0 | 0 | 0 |
| 4D Lap | 104 | 2 | 20 | 38 | 4 | 10 | |
| VNR | CWLS | 33.2 | 38.4 | 28.1 | 16.0 | 18.5 | 14.4 |
| 4D Lap | 23.7 | 26.4 | 17.5 | 10.7 | 13.3 | 9.4 | |
| VNR improve (%) | 40 | 46 | 61 | 50 | 39 | 53 | |
| mean WSS (Pa) | CWLS | 0.17 | 0.16 | 0.17 | 0.20 | 0.18 | 0.20 |
| 4D Lap | 0.20 | 0.17 | 0.19 | 0.23 | 0.20 | 0.22 | |
| relative ϵWSS | CWLS | 0.45 | 0.37 | 0.42 | 0.68 | 0.51 | 0.65 |
| 4D Lap | 0.70 | 0.56 | 0.78 | 1.38 | 1.02 | 1.50 | |
| ϵWSS reduction (%) | 56 | 53 | 85 | 105 | 102 | 130 | |