ABPI Anke Brachial Index Calculator

Formula

The formula to calculate the Ankle Brachial Index is:

\[ ABPI = \frac{ASP}{BSP} \]

Where:

\(ABPI\) is the Ankle Brachial Index
\(ASP\) is the ankle systolic pressure (mmHg)
\(BSP\) is the brachial systolic pressure (mmHg)

What is Ankle Brachial Index?

The Ankle Brachial Index (ABPI) is a simple, non-invasive test used to measure the ratio of the blood pressure in the ankle to the blood pressure in the arm. This index helps in diagnosing peripheral artery disease (PAD). A lower ABPI value indicates a higher risk of PAD.

Example Calculation

Let's assume the following values:

Ankle Systolic Pressure (ASP) = 120 mmHg
Brachial Systolic Pressure (BSP) = 140 mmHg

Using the formula:

\[ ABPI = \frac{120}{140} = 0.86 \]

The Ankle Brachial Index is 0.86.