Peak Wave Doppler Velocity

What Is This Measurement?

Doppler ultrasound uses sound waves to detect the direction and speed of blood flow. The peak wave velocity is the highest speed recorded during the flow cycle at the point being examined. It is measured in velocity units and is typically reported as part of an imaging study rather than as a standalone blood test.

Why It Is Done

Clinicians use this measurement to evaluate how blood moves through vessels or across heart valves and to look for narrowing, leakage, or other flow problems. It is commonly part of echocardiography or vascular ultrasound examinations.

What to Expect

The measurement is obtained during a standard ultrasound exam. You may be asked to lie still, change position, or hold your breath briefly while images are captured. The procedure is noninvasive and generally painless.

How Results Are Used

The reported peak velocity is interpreted together with other findings from the same study, such as the appearance of the vessel or valve and the flow pattern. Your clinician will consider the whole picture rather than this single value.