Doppler Ultrasound To Detect Blood Flow Using Sound Waves
A Doppler ultrasound is a noninvasive test that is used to measure your blood flow and blood pressure using high frequency reflected sound waves. This test is helps physicians to evaluate blood flow through the major arteries and veins of the arms, legs, and neck. It shows blocked or reduced blood flow through the major arteries that could eventually cause a stroke. This test enables doctors to find blood clots in leg veins that can block blood flow to the lungs. This test is also used during pregnancy to check the blood flow in an unborn baby to check the health of the fetus.
The Doppler Ultrasound Helps To Diagnose Many Conditions Such As:
The Different Types Of Doppler Ultrasound Are:
During the test, a handheld instrument (transducer) is pressed against the site of your body being examined. The transducer sends and receives sound waves. The sound waves get reflected by the blood cells. By measuring the rate of change of the frequency the doctor can estimate the blood flow. If there is no blood flow, the pitch remains same.