Table 1:
Results of the flow phantom analysis in terms of peak flow rate difference, stroke volume difference, and the SD of the diastolic flow
| Sequence | Acceleration Factor | Cardiac Frames | Mean Peak Flow Rate Difference (mL/s) (%) | Mean Stroke Volume Difference (mL) (%) | Mean Diastolic Flow Rate SE (mL/s) |
|---|---|---|---|---|---|
| 4D PROUD-1 | 32 | 12 | −0.65 (−46.7%) | −0.036 (−15.3%) | 0.028 |
| 4D PROUD-2 | 24 | 12 | −0.52 (−35.0%) | −0.024 (−5.3%) | 0.018 |
| 4D PROUD-3 | 16 | 12 | −0.47 (−32.9%) | −0.040 (−14.3%) | 0.033 |
| 4D PROUD-5 | 8 | 12 | −0.45 (−31.6%) | −0.031 (−9.4%) | 0.035 |
| 4D PROUD-4 | 12 | 12 | −0.36 (−25.5%) | −0.024 (−7.4%) | 0.021 |
| 4D PROUD-6 | 4 | 12 | −0.34 (−23.9%) | −0.027 (−10.4%) | 0.027 |
| 4D SENSE-1 | 3 | 12 | −0.31 (−22.5%) | −0.007 (−5.2%) | 0.047 |
| 4D SENSE-2 | 3 | 16 | −0.27 (−21.5%) | −0.027 (−11.5%) | 0.031 |
| 4D PROUD-5 | 16 | 24 | −0.19 (−15.0%) | −0.002 (−3.2%) | 0.029 |
| 4D PROUD-3 | 32 | 24 | −0.18 (−13.5%) | −0.013 (−3.7%) | 0.029 |
| 4D PROUD-6 | 8 | 24 | −0.17 (−10.4%) | −0.028 (−10.6%) | 0.024 |
| 4D PROUD-6 | 24 | 24 | −0.13 (−8.0%) | −0.008 (−0.8%) | 0.028 |
| 4D PROUD-5 | 26 | 40 | −0.08 (−8.8%) | −0.011 (−2.0%) | 0.027 |
| 4D PROUD-4 | 30 | 30 | −0.06 (−7.8%) | 0.005 (−3.3%) | 0.022 |
| 4D PROUD-6 | 10 | 30 | 0.05 (1.9%) | −0.029 (−12.4%) | 0.027 |
| 4D PROUD-6 | 13 | 40 | −0.04 (−2.4%) | −0.031 (−11.4%) | 0.024 |
| 4D PROUD-5 | 20 | 30 | −0.03 (−4.3%) | 0.003 (−4.9%) | 0.034 |
| 2D reference-2 | 2 | 40 | −0.05 (−3.7%) | −0.006 (−3.0%) | 0.010 |
| 2D reference-1a | 2 | 40 | 0.00 (0.0%) | 0.000 (−0.0%) | 0.011 |
Note:—SE indicates standard error.
a
Used as a comparison baseline.