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Table 2 4D PC-MRI imaging scenarios for a cardiac period of T ECG = 800 ms. PI = parallel imaging, Rnet = net acceleration factor

From: Comprehensive 4D velocity mapping of the heart and great vessels by cardiovascular magnetic resonance

  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