Ultrasonography uses sound waves to produce images on the screen of organs and structures, inside the body. Ultrasound duplex scanning It allows us to study blood flow in the veins of the hands or feet.
Ultrasound duplex scanning can be used for the following purposes:
For this test does not require any special preparation.
You will be asked to lie down on the couch. On the skin of the hand or leg veins in the study applied a special gel, which helps spread the ultrasonic waves.
Ultrasound machine has a hand tool, called sensor, which looks like a microphone or wand. The ultrasound machine has a tool, called sensor, which looks like a microphone or a short stick. The sensor is applied to the skin at the site of gel. It sends sound waves into the body. The waves are reflected from body organs and fed back to the transmitter. Echo are converted to images, which are displayed on the screen. The doctor examines the blood flow image on the screen and, if necessary, can take pictures.
Vras can put pressure on the skin sensor, for, to better see the vein and to check the change in blood flow at the pressure on them.
After the test, you will be able to do daily activities.
The length of the test varies depending on the condition of blood vessels. In most cases, Doppler ultrasound will take 15-45 minutes.
The test is not painful. You may feel some mild discomfort while pressing the sensor on an arm or leg.
Radiologist, cardiologist or vascular surgeon will examine pictures. Based on these data the doctor will recommend treatment and further testing.
After returning home, you need to see a doctor in the following cases:
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