COLOUR DOPPLER ALL 4 LIMBS (ARTERIAL) I NEAR GREEN PARK I HAUZ KHAS I SAGDURJUNG ENCLAVE BOOK NOW 09999-44-6542 What is a Doppler ultrasound? A Doppler ultrasound is a test that uses high-frequency sound waves to measure the amount of blood flow through your arteries and veins, usually those that supply blood to your arms and legs. Vascular flow studies, also known as blood flow studies, can detect abnormal flow within an artery or blood vessel. This can help to diagnose and treat a variety of conditions, including blood clots and poor circulation. A Doppler ultrasound can be used as part of a blood flow study. A Doppler ultrasound is a risk-free and pain-free procedure that requires little preparation. The test provides your doctor with important information about the flow of blood through your major arteries and veins. It can also reveal blocked or reduced blood flow through narrowed areas in the arteries, which could eventually lead to a stroke. Learn more: Ultrasound » Why do I need a Doppler ultrasound? 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. Your doctor may order a Doppler ultrasound exam if you show signs of: deep vein thrombosis (DVT), a condition that occurs when a blood clot forms in a vein deep inside your body (usually in the leg or hip regions) superficial thrombophlebitis, an inflammation of the veins due to a blood clot in a vein just below the skin's surface arteriosclerosis, a narrowing and hardening of the arteries that supply blood to the legs and feet thromboangiitis obliterans, a rare disease in which the blood vessels of the hands and feet become inflamed and swollen vascular tumors in your arms or legs A Doppler ultrasound can help determine the blood pressure within your arteries. It can also show how much blood is currently flowing through your arteries and veins. What is Arterial Doppler Both Lower Limb? A Doppler ultrasound is a radiological investigation which uses reflected sound waves to see how blood flows through a blood vessel. It helps clinicians evaluate blood flow through major arteries and veins, such as those of the arms, legs, and neck. During pregnancy, a Doppler ultrasound can be used to evaluate blood flow in an unborn baby to check the health of the fetus. It is a non invasive technique in which there is no risk of radiation exposure. It is totally safe during pregnancy. Preparation for Colour Doppler: Avoid nicotine products like cigarette and tobacco for about 2-4 hours prior to the Doppler test procedure. Nicotine causes the blood vessels to constrict and this may be mistaken for a pathological constriction.The patient is asked to remove any jewellery or metal accessories as it may interfere with the examination results.For abdominal scan, the patient would be asked to eat low-fiber diet for a day before the test, to minimize gas in the gut. Doppler Ultrasound Email this page to a friend Print Facebook Twitter Pinterest What is a Doppler ultrasound? A Doppler ultrasound is an imaging test that uses sound waves to show blood moving through blood vessels. 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. This is known as the Doppler effect. There are different types of Doppler ultrasound tests. They include: Color Doppler. This type of Doppler uses a computer to change sound waves into different colors. These colors show the speed and direction of blood flow in real time. Power Doppler, a newer type of color Doppler. It can provide more detail of blood flow than standard color Doppler. But it cannot show the direction of blood flow, which can be important in some cases. Spectral Doppler. This test shows blood flow information on a graph, rather than color pictures. It can help show how much of a blood vessel is blocked. Duplex Doppler. This test uses standard ultrasound to take images of blood vessels and organs. Then a computer turns the images into a graph, as in spectral Doppler. Continuous wave Doppler. In this test, sound waves are sent and received continuously. It allows for more accurate measurement of blood that flows at faster speeds. Other names: Doppler ultrasonography What is it used for? Doppler ultrasound tests are used to help health care providers find out if you have a condition that is reducing or blocking your blood flow. It may also be used to help diagnose certain heart diseases. The test is most often used to: Check heart function. It is often done along with an electrocardiogram, a test that measures electrical signals in the heart. Look for blockages in blood flow. Blocked blood flow in the legs can cause a condition called deep vein thrombosis (DVT). Check for blood vessel damage and for defects in the structure of the heart. Look for narrowing of blood vessels. Narrowed arteries in arms and legs can mean you have condition called peripheral arterial disease (PAD). Narrowing of arteries in the neck can mean you have a condition called carotid artery stenosis. Monitor blood flow after surgery. Check for normal blood flow in a pregnant woman and her unborn baby. Why do I need a Doppler ultrasound? You may need a Doppler ultrasound if you have symptoms of reduced blood flow or a heart disease. Symptoms vary depending on the condition causing the problem. Some common blood flow conditions and symptoms are below. Symptoms of peripheral arterial disease (PAD) include: Numbness or weakness in your legs Painful cramping in your hips or leg muscles when walking or climbing stairs Cold feeling in your lower leg or foot Change in color and/or shiny skin on your leg Symptoms of heart problems include: Shortness of breath Swelling in your legs, feet, and/or abdomen Fatigue You may also need a Doppler ultrasound if you: Have had a stroke. After a stroke, your health care provider may order a special kind of Doppler test, called transcranial Doppler, to check blood flow to the brain. Had an injury to your blood vessels. Are being treated for a blood flow disorder. Are pregnant and your provider thinks you or your unborn baby might have a blood flow problem. Your provider may suspect a problem if your unborn baby is smaller than it should be at this stage of pregnancy or if you have certain health problems. These include sickle cell disease or preeclampsia, a type of high blood pressure that affects pregnant women. What happens during a Doppler ultrasound? A Doppler ultrasound usually includes the following steps: You will lie a table, exposing the area of your body that's being tested. A health care provider will spread a special gel on the skin over that area. The provider will move a wand-like device, called a transducer, over the area. The device sends sound waves into your body. The movement of blood cells causes a change in the pitch of the sound waves. You may hear swishing or pulse-like sounds during the procedure. The waves are recorded and turned into images or graphs on a monitor. After the test is over, the provider will wipe the gel off your body. The test takes about 30-60 minutes to complete. Will I need to do anything to prepare for the test? To prepare for a Doppler ultrasound, you may need to: Remove clothing and jewelry from the area of the body that is getting tested. Avoid cigarettes and other products that have nicotine for up to two hours before your test. Nicotine causes blood vessels to narrow, which can affect your results. For certain types of Doppler tests, you may be asked to fast (not eat or drink) for several hours before the test. Your health care provider will let you know if you need to do anything to prepare for your test. Are there any risks to the test? There are no known risks to having a Doppler ultrasound. It is also considered safe during pregnancy. What do the results mean? If your results were not normal, it may mean you have: A blockage or clot in an artery Narrowed blood vessels Abnormal blood flow An aneurysm, a balloon-like bulge in the arteries. It causes the arteries to become stretched and thin. If the wall becomes too thin, the artery can rupture, causing life-threatening bleeding. Results may also show if there is abnormal blood flow in an unborn baby. 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