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Table 2 Changes of shear stress in low velocity regions between two groups detected by MRI and US measurement before and after surgery

From: Contralateral artery enlargement predicts carotid plaque progression based on machine learning algorithm models in apoE−/− mice

  ApoE−/− C57BL/6J
7 days 14 days 7 days 14 days
LCA RCA LCA RCA LCA RCA LCA RCA
Vm (mm/s) 152.4 ± 43.7 532.8 ± 104.4 71.3 ± 16.6 505.3 ± 98.7 162.2 ± 33.4 487.8 ± 76.3 79.1 ± 9.9 458.9 ± 55.8
Dr (mm) 0.42 ± 0.01 0.64 ± 0.02 0.29 ± 0.02 0.66 ± 0.03 0.44 ± 0.02 0.61 ± 0.01 0.3 ± 0.03 0.62 ± 0.02
SS (dyn/cm2) 50.4 ± 14.6* 113.1 ± 22.1 34.3 ± 6.0*,# 109.8 ± 21.9 51.3 ± 11.2* 111.1 ± 17.4 37.2 ± 5.8*,# 103.6 ± 13.1
  1. Data are mean ± SD
  2. Vm mean velocity of carotid artery, Ds end-systolic diameters of carotid artery, SS shear stress of carotid artery, μ blood viscosity of mice, SS 4 μVm/Ds
  3. * P < 0.05, comparing the shear stress of LCA with the shear stress of RCA. P < 0.05, comparing the shear stress at 14 days with the shear stress at 7 days