LV Calculator
Calculate left ventricular mass, LVMI, and relative wall thickness from echocardiography measurements
Calculate Left Ventricular Mass
Patient Information
Echocardiography Measurements
Left Ventricle End Diastolic Dimension (typical: 39-56 mm)
Interventricular Septal end Diastole (typical: 6-11 mm)
Posterior Wall thickness at end-Diastole (typical: 6-11 mm)
Left Ventricular Assessment Results
Enter measurements to calculate LVMI
Enter measurements to classify LV geometry
Formula used: LV Mass = 0.8 × [1.04 × ((LVEDD + IVSd + PWd)³ - LVEDD³)] + 0.6
LVMI calculation: LV Mass ÷ BSA = 0.0 ÷ 0.000 = 0.0 g/m²
RWT calculation: (2 × PWd) ÷ LVEDD = 0.000
Medical Disclaimer
This calculator is for educational and informational purposes only. It should never replace professional medical assessment or clinical judgment. Echocardiographic measurements require proper training and expertise to obtain accurate results. Always consult qualified healthcare providers for medical diagnosis and treatment decisions.
Example Calculation
Clinical Case Example
Patient: 45-year-old male, weight 80 kg, height 175 cm
BSA: 1.95 m² (calculated)
LVEDD: 50 mm
IVSd: 8 mm
PWd: 8 mm
Calculations
LV Mass: 0.8 × [1.04 × ((5.0 + 0.8 + 0.8)³ - 5.0³)] + 0.6
LV Mass: 0.8 × [1.04 × (250.05 - 125)] + 0.6 = 104.8 g
LVMI: 104.8 ÷ 1.95 = 53.7 g/m²
RWT: (2 × 0.8) ÷ 5.0 = 0.32
✅ Normal LVMI and geometry for males
LVMI Reference Ranges
Women (g/m²)
Men (g/m²)
LV Geometry Types
Normal LVMI + RWT ≤0.42
Normal LVMI + RWT >0.42
Elevated LVMI + RWT ≤0.42
Elevated LVMI + RWT >0.42
Echocardiography Tips
Measure at end-diastole for accuracy
Use M-mode or 2D guided measurements
Ensure perpendicular measurements
Average multiple cardiac cycles
Consider image quality and patient factors
Understanding Left Ventricular Assessment
What is Left Ventricular Mass?
Left ventricular mass (LV mass) represents the total muscle mass of the left ventricle, the heart's main pumping chamber. It's calculated from echocardiographic measurements and is essential for assessing cardiac remodeling and risk stratification.
Clinical Significance
- •Diagnosis of left ventricular hypertrophy (LVH)
- •Risk stratification in cardiovascular disease
- •Monitoring response to antihypertensive therapy
- •Assessment of cardiac remodeling patterns
Measurement Parameters
LVEDD
Left ventricle end-diastolic dimension - internal diameter at end-diastole
IVSd
Interventricular septal thickness at end-diastole
PWd
Posterior wall thickness at end-diastole
Note: All measurements should be obtained at end-diastole using M-mode or 2D-guided techniques according to ASE/EACVI guidelines.