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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