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Table 2 Echocardiographic features

From: Dissecting myocardial mechanics in patients with severe aortic stenosis: 2-dimensional vs 3-dimensional-speckle tracking echocardiography

VariableValue
2D measurements (N = 168)
 LV end-diastolic diameter (mm)48 ± 6
 LV end-systolic diameter (mm)30 ± 5
 Interventricular septum thickness (mm)12 ± 2
 Posterior wall thickness (mm)11 ± 2
 LV mass index (g/m2)109 ± 34
 LV end-diastolic volume index (mL/m2)63 ± 20
 LV end-systolic volume index (mL/m2)24 ± 11
 LV stroke volume index (mL/m2)40 ± 10
 LV ejection fraction (%)63 ± 6
 E velocity (cm/s)96 ± 42
 A velocity (cm/s)104 ± 36
 E/A ratio0.9 ± 0.4
 Septal e’ velocity (cm/s)5.4 ± 1.7
 Septal E/e’ ratio17.3 ± 7.5
 Aortic valve peak velocity (m/s)4.4 ± 0.5
 Aortic valve mean gradient (mm Hg)49 ± 12
 Aortic valve area (cm2)0.89 ± 0.16
 Aortic valve area index (cm2/m2)0.46 ± 0.07
 Total arterial stiffness (mm Hg/mL)0.8 ± 0.3
 Total arterial compliance (mL/mm Hg)1.5 ± 0.7
 Systemic vascular resistance (mL/mm Hg/m2)1368 ± 438
 Systemic vascular resistance index (dynes•s/cm−5)2628 ± 788
 Valvulo-arterial impedance (Zva) (mm Hg/mL/m2)3.7 ± 0.7
3D measurements (N = 165)
 LV end-diastolic volume index (mL/m2)62 ± 16
 LV end-systolic volume index (mL/m2)24 ± 9
 LV stroke volume index (mL/m2)38 ± 9
 LV ejection fraction (%)61 ± 5
  1. Data expressed as mean ± standard deviation
  2. Abbreviations: 2D 2-dimensional, LV Left ventricular, 3D 3-dimensional