Echocardiography Calculator

Understanding Echocardiographic Measurements

Left Ventricular Mass Index (LVMi)

LVMi is a crucial measurement for assessing left ventricular hypertrophy, normalized for body surface area:

• Normal range: 43-95 g/m² (women), 49-115 g/m² (men)
• Calculated using ASE guidelines
• Important for hypertension assessment

Ejection Fraction (EF)

EF measures the percentage of blood leaving the heart with each contraction:

• Normal range: 55-70%
• Key indicator of systolic function
• Critical for heart failure assessment

Body Surface Area (BSA)

BSA is used to normalize cardiac measurements to patient size:

• Uses DuBois formula
• Essential for indexing cardiac measurements
• Standard for clinical practice

Left Atrial Volume Index (LAVI)

LAVI is a measure of left atrial size indexed to body surface area:

• Normal range: ≤ 34 mL/m²
• Predictor of cardiovascular outcomes
• Important for diastolic function assessment