What is an arterial duplex scan?
Ultrasound is a procedure that uses sound waves to “see” inside your body. An arterial duplex ultrasound uses sound waves to create a color map of the arteries in your legs to identify: Narrowing of your vessels that may be causing leg pain when walking. Resting leg pain.
What is the difference between arterial duplex and Doppler?
A duplex ultrasound combines: Traditional ultrasound: This uses sound waves that bounce off blood vessels to create pictures. Doppler ultrasound: This records sound waves reflecting off moving objects, such as blood, to measure their speed and other aspects of how they flow.
When is Doppler test done?
Your doctor may suggest a Doppler ultrasound exam if you show signs of decreased blood flow in the arteries or veins of your legs, arms, or neck. A reduced amount of blood flow may be due to a blockage in the artery, a blood clot inside a blood vessel, or an injury to a blood vessel.
What is arterial duplex upper extremity?
What is an Upper Extremity Arterial Duplex? An Upper Extremity Arterial Duplex Scan is an ultrasound image of the arteries or arterial bypass grafts in the upper portion of the body from the subclavian arteries (major arteries of the chest below the collar bone or clavicle) to the wrist.
How long does a duplex scan take?
It usually takes about 30 minutes. There are typically no side effects or complications associated with duplex ultrasound examinations. There is little preparation required for duplex ultrasound. Occasionally, patients may need to fast before an abdominal exam.
How do you scan arterial duplex?
Your healthcare provider uses a device called a transducer to make pictures of the arteries. The transducer sends out sound waves that bounce off your blood vessels. The sound waves are too high-pitched for you to hear. The transducer then picks up the bounced sound waves and makes them into pictures.
Why is it called duplex ultrasound?
Duplex ultrasound involves using high frequency sound waves to look at the speed of blood flow, and structure of the leg veins. The term “duplex” refers to the fact that two modes of ultrasound are used, Doppler and B-mode. The B-mode transducer (like a microphone) obtains an image of the vessel being studied.
Is an ultrasound the same as a Doppler?
A regular ultrasound also uses sound waves to create images of structures inside the body, but it can’t show blood flow. Doppler ultrasound works by measuring sound waves that are reflected from moving objects, such as red blood cells.