Aterial u/s+dopplers?!
Question:
Aterial u/s+dopplers?
Answers:
I am unsure of what your question is, but I put some information below that I hope will be of help to you.
A Doppler ultrasound test uses reflected sound waves to evaluate blood as it flows through a blood vessel. It helps doctors evaluate blood flow through the major arteries and veins of the arms, legs, and neck. It can show blocked or reduced blood flow through narrowing in the major arteries of the neck that could cause a stroke. It also can reveal blood clots in leg veins (deep vein thrombosis, or DVT) that could break loose and block blood flow to the lungs (pulmonary embolism.
Arteries in the neck:
You will be asked to lie down with a pillow underneath your head for support. The test is performed on both sides of your neck, and then the results are compared to standard values to determine the amount of blockage or narrowing of the arteries.
Arteries in the arms and legs
This test is often performed on both arms or both legs. Even if the suspected blood flow problem is in only one limb, both may be tested for comparison. If your arms are being tested, they will be tested first while you are lying down and then again while you are sitting.
Depending on which blood vessels are being tested, a blood pressure cuff may be wrapped around one or both limbs so that the blood pressure can be taken at several different places. When testing the legs, a blood pressure cuff may be wrapped first around the calf and then around the thigh. The test may be done at several locations on your leg. When testing the arms, the pressure cuff may be wrapped first around the forearm and then around the upper arm.
Doppler ultrasound is done to:
Detect blood clots and blocked or narrowed blood vessels in almost any part of the body, especially in the neck, arms, and legs. Blocked or narrowed arteries of the neck can cause dizziness, loss of vision, paralysis, weakness, numbness, or other symptoms of a stroke. Blood clots in the deep veins of the leg can cause leg pain and swelling and can increase a person's risk of pulmonary embolism.
Evaluate leg pain that may be caused by intermittent claudication, a condition caused by atherosclerosis of the lower extremities.
Evaluate blood flow after a stroke or other condition that might be caused by a problem with blood flow. Evaluation of a stroke can be done through a technique called transcranial Doppler (TCD) ultrasound.
Map veins that may be used for blood vessel grafts. It also can evaluate the condition of grafts used to bypass blockage in an arm or leg.
Determine the amount of blood flow to a transplanted kidney or liver.
Monitor the flow of blood following blood vessel surgery.
Determine the presence, amount, and location of arterial plaque. Plaque in the carotid arteries can reduce blood flow to the brain and may increase the risk of stroke.
Click these links for more info:
http://www.webmd.com/a-to-z-guides/doppl...
http://www.webmd.com/a-to-z-guides/doppl...
http://www.webmd.com/a-to-z-guides/doppl...