Table 2 4D PC-MRI imaging scenarios for a cardiac period of T ECG = 800 ms. PI = parallel imaging, Rnet = net acceleration factor
|  | venc [cm/s] | TR [ms] | 3D volume [mm3] | matrix Nx × Ny × Nz | No of phase encodes N = Ny × Nz | k-space segmentation nk | respiration efficiency Reff [%] | PI Rnet | spatial resolution [mm3] | temp. resolution TRes = 4 N/nk [ms] | total scan time N/nk *TECG/Rnet/Reff [min] |
|---|---|---|---|---|---|---|---|---|---|---|---|
Aorta | 150 | 5.1 | 320 × 260 × 70 | 192 × 120 × 26 | 3120 | 2 | 70-80 | 1.8 | 1.7 × 2.2 × 2.5 | 40.8 | 14.4 - 16.5 |
|  | 150 | 5.1 | 320 × 260 × 70 | 192 × 128 × 32 | 4096 | 2 | 70-80 | 1.8 | 1.7 × 2.0 × 2.2 | 40.8 | 18.9 - 21.7 |
|  | 150 | 5.1 | 320 × 260 × 70 | 192 × 140 × 32 | 4480 | 3 | 70-80 | 1.8 | 1.7 × 2.0 × 2.2 | 61.2 | 12.6 - 14.5 |
Heart | 100 | 5.8 | 290 × 290 × 108 | 96 × 96 × 36 | 3456 | 2 | 70-80 | 2 | 3.0 × 3.0 × 3.0 | 46.4 | 14.4 - 16.4 |
|  | 100 | 5.8 | 290 × 290 × 100 | 116 × 116 × 40 | 4640 | 2 | 70-80 | 2 | 2.5 × 2.5 × 2.5 | 46.4 | 19.3 - 22.1 |
|  | 100 | 5.8 | 290 × 290 × 108 | 96 × 96 × 36 | 3456 | 3 | 70-80 | 2 | 3.0 × 3.0 × 3.0 | 69.6 | 9.6 - 10.9 |