What is a cerebrovascular duplex exam?
What is a cerebrovascular duplex exam?
A carotid artery duplex scan is a type of vascular ultrasound study done to assess occlusion (blockage) or stenosis (narrowing) of the carotid arteries of the neck and/or the branches of the carotid artery. A carotid artery duplex scan is a noninvasive (the skin is not pierced) procedure.
What is a carotid duplex report?
Carotid duplex is an ultrasound test that shows how well blood is flowing through the carotid arteries. The carotid arteries are located in the neck. They supply blood directly to the brain.
What happens during a duplex scan?
A duplex scan means that the provider uses 2 transducers. The second one (Doppler) lets your provider hear the sound waves the transducer sends out. He or she can hear how fast blood is flowing through a blood vessel and in which direction it is flowing.
What is a duplex scan for?
A duplex ultrasound can show how blood flows to many parts of the body. It can also tell the width of a blood vessel and reveal any blockages. This test is a less invasive option than arteriography and venography. A duplex ultrasound can help diagnose the following conditions: Abdominal aneurysm.
How long does a duplex scan take?
The technologist will apply a warm gel to your legs and a transducer or a small microphone will be used to examine your arteries. You will hear the sound of moving blood during the exam. Do not be alarmed; it is harmless. Your exam will take approximately 15 to 30 minutes.
What is the difference between Doppler and duplex ultrasound?
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 do you do a carotid duplex?
A carotid duplex ultrasound is performed to evaluate symptoms including dizziness, loss of memory, stroke, loss of musclecontrol and other symptoms that might result from narrowing or blockage of the vessels (carotid arteries) on either side of your neck. A carotid ultrasound can also be used to screen for stroke risk.
Is a duplex scan the same as a Doppler?
What is the purpose of venous duplex ultrasound?
This procedure is performed to evaluate symptoms including leg pain or swelling, excessive varicose veins, shortness of breath, or suspected blood clots in your legs and/or lungs.
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.
What is the purpose of a cerebrovascular duplex scan?
Cerebrovascular Duplex Survey 1. The purpose of the survey is to identify arterial wall abnormalities, vessel tortuosity, pathology, and anatomic anomalies. The initial survey is performed with gray-scale (B-Mode) imaging to ensure that features of the arterial wall and plaque morphology are accurately characterized.
When to use a carotid duplex ultrasound test?
Carotid duplex ultrasound is the recommended diagnostic test for symptomatic and asymptomatic patients with known or suspected extracranial carotid artery occlusive disease. Appropriate test interpretation allows an initial clinical decision regarding medical treatment, intervention, or the need for additional cerebrovascular imaging.
What kind of test is a duplex ultrasound?
Duplex ultrasound is a non-invasive evaluation of blood flow through your arteries and veins . This test provides information to help your vascular surgeon make a sound diagnosis and outline a treatment plan.
How is the vertebrobasilar artery duplex scan done?
The test may also look at the vertebrobasilar artery. This artery also brings blood to your brain. 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.