Fortunately, today there is non-invasive technology that can determine the presence of PAD. Over 50% of individuals diagnosed with PAD are asymptomatic. The key to prevention is early detection- that’s where PADnet studies come in. PADnet is a non-invasive circulation test that tests for arterial disease in your lower extremities. The test takes approximately 20 minutes, and it consists of a series of blood pressure cuffs around your upper arms, thighs, calves, ankles, and big toes which measure the pulse waves at each level using sensors. This wave form analysis is called Pulse Volume Recording (PVR).

Secondly, your blood pressure will be recorded at your arms and ankles; the Ankle-Brachial Index, known as the ABI, is determined by the ratio between these pressures. The systolic blood pressure (the top number of the blood pressure measurement) of the ankle is divided by the systolic blood pressure of the arm. Ideally this number should be close to 1; which would indicate that the blood flow to your lower extremities is similar to the blood flow in your upper extremities. PAD is diagnosed if your ankle pressure is lower than your arm pressure. With severe narrowing, the ABI or ankle pressure may be half of your arm pressure. If your ABIs are abnormal, your doctor may refer you to a vascular specialist who can order additional diagnostic testing and discuss treatment options with you.

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