The formula to calculate the Left Ventricular Mass Index (LVMI) is:
\[ \text{LVMI} = \frac{\text{LV Mass}}{\text{Body Surface Area}} \]
Where:
The Left Ventricular Mass Index (LVMI) is a measurement used in cardiology to assess the size of the left ventricle of the heart. The left ventricle is the chamber of the heart responsible for pumping oxygenated blood to the rest of the body. An increase in the size of the left ventricle can be an indication of heart disease, particularly if the heart muscle has become thickened or enlarged due to conditions such as hypertension or aortic stenosis. The LVMI is calculated by measuring the mass of the left ventricle and dividing it by the body surface area, providing a value that can be compared to reference ranges to determine if the left ventricle is of normal size or if it is enlarged. This index is often used in conjunction with other diagnostic tests to provide a comprehensive picture of a patient’s heart health.
Let's assume the following values:
Using the formula to calculate the Left Ventricular Mass Index:
\[ \text{LVMI} = \frac{200}{1.8} \approx 111.11 \text{ g/m²} \]
The Left Ventricular Mass Index is approximately 111.11 g/m².