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Table 3 Intraobserver comparison of Echocardiographic variables using paired t Test

From: "Echocardiography in Nigeria: use, problems, reproducibility and potentials"

PARAMETER n TEST 1(SD) TEST 2 (2D) MEAN DIFFERENCE (2D) P VALUE
RVOT 20 2.95 (0.58) 2.99(0.53) -0.06(0.39) 0.534
AO 20 2.74(0.36) 2.77 (0.36) -0.025(0.152) 0.470
AVO 20 1.86 (0.46) 1.94 (0.35) -0.08 (0.37) 0.365
LA 20 3.89(0.69) 3.76(0.71) 0.12 (0.29) 0.078
IVSd 20 1.02 (0.27) 0.93(0.25) 0.09 (0.10) 0.001
IVSs 20 1.26(0.36) 1.22(0.34) 0.04 (0.22) 0.450
LVIDd 20 5.33(0.88) 5.35 (1.08) 0.02 (0.41) 0.850
LVIDs 20 3.80(1.08) 3.83 (1.24) 0.03 (0.37) 0.744
PWTd 20 1.08 (0.20) 1.10 (0.23) 0.03(0.16) 0.744
PWTs 20 1.46 (0.25) 1.56(0.29) 0.10 (0.18) 0.575
LVM 20 217.5(70.2) 211.8(81.0) 5.68(36.3) 0.492
  1. RVOT = Right Ventricular Outflow Diameter, AO = Aortic Root Diameter, AVO = Aortic Valve Opening, LA = Left Atrial Diameter, IVSd = Interventricular Septal wall thickness in diastole, IVSs = Interventricular septal wall thickness in systole, LVIDs = Left ventricular Internal Diameter in Diastole, LVIS = Left Ventricular internal diameter in Systole, PWTd = Posterior Wall Thickness in Diastole, PWTs = Posterior Wall Thickness in Systole, LVM = Left Ventricular Mass