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Table 1 Echocardiographic measurements from B-mode images

From: Transthoracic echocardiography reference values in juvenile and adult 129/Sv mice

Measurement Juvenile n Adult n p
LVEndoLd (mm) 6.18 (0.57) 15 7.40 (0.58) 15 < 0.001
LVEndoLs (mm) 4.99 ± 0.38 15 6.58 ± 0.45 15 < 0.001
LVEpiLd (mm) 6.38 (0.56) 15 7.65 (0.67) 15 < 0.001
LVEpiLs (mm) 5.35 ± 0.34 15 7.03 ± 0.44 15 < 0.001
LVEndoAd (mm2) 6.06 ± 0.87 15 9.87 ± 1.20 15 < 0.001
LVEndoAs (mm2) 3.06 (0.98) 15 4.25 (1.12) 15 < 0.001
LVEpiAd (mm2) 11.85 ± 1.73 15 19.47 ± 1.71 15 < 0.001
LVEpiAs (mm2) 8.84 ± 1.83 15 14.46 ± 1.57 15 < 0.001
EAC (mm2) 3.22 ± 0.81 15 5.62 ± 1.16 15 < 0.001
FAC (%) 52.89 ± 10.07 15 56.87 ± 7.80 15 ns
LVVd (μl) 29.57 ± 6.04 15 59.90 ± 8.78 15 < 0.001
LVVs (μl) 11.85 ± 3.19 15 23.32 ± 5.31 15 < 0.001
LVM (mg) 39.68 ± 8.64 15 81.90 ± 9.69 15 < 0.001
LVMi (mg/g) 5.26 ± 1.27 15 4.16 ± 0.42 15 0.005
AoD (mm) 0.93 ± 0.09 15 1.27 ± 0.13 15 < 0.001
PAD (mm) 1.34 ± 0.11 15 1.59 ± 0.13 15 < 0.001
  1. Values are mean ± SD or median (IQR), as appropriate. p = statistical significance; ns = not significant. n = 15 for all measurements.
  2. LVEndoL = Left ventricle endocardial length. LVEpiL = Left ventricle epicardial length. LVEndoA = Left ventricle endocardial area. LVEpiA = Left ventricle epicardial area. EAC = Endocardial area change. FAC = Fractional area change. LVV = Left ventricle volume. LVM = Left ventricle mass. LVMi = LVM index. AoD = Ascending aorta diameter. PAD = Pulmonary artery diameter. -d = In diastole. -s = In systole.