Relative Wall Thickness Calculator

Formula

To calculate the Relative Wall Thickness (RWT):

\[ RWT = \frac{2 \times PWT}{LVD} \]

Where:

\(RWT\) is the Relative Wall Thickness
\(PWT\) is the posterior wall thickness (mm)
\(LVD\) is the LV diastolic diameter (mm)

What is Relative Wall Thickness?

Relative Wall Thickness (RWT) is a measure used in cardiology to assess the geometry of the left ventricle. It is calculated by taking the ratio of the posterior wall thickness to the LV diastolic diameter and multiplying by 2. This measurement helps in evaluating left ventricular hypertrophy and the overall heart function.

Example Calculation

Let's assume the following values:

Posterior Wall Thickness (\(PWT\)) = 10 mm
LV Diastolic Diameter (\(LVD\)) = 50 mm

Using the formula:

\[ RWT = \frac{2 \times 10}{50} = \frac{20}{50} = 0.40 \]

The relative wall thickness is 0.40.