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  • Doppler ultrasound: What is it used for? - Mayo Clinic
    Doppler ultrasound is a noninvasive test that can be used to measure the blood flow through your blood vessels It works by bouncing high-frequency sound waves off red blood cells that are circulating in the bloodstream A regular ultrasound uses sound waves to produce images, but can't show blood
  • Carotid ultrasound - Mayo Clinic
    Carotid (kuh-ROT-id) ultrasound is a procedure that uses sound waves to look at blood flow through the carotid arteries The carotid arteries are a pair of blood vessels on each side of the neck They deliver blood from the heart to the brain A carotid ultrasound also checks the thickness of the carotid artery wall and for blood clots
  • 多普勒超声：其用途是什么？ - 妙佑医疗国际 - Mayo Clinic
    多普勒超声通过测量音高（或者说频率）的变化率来估计血液流动的速度。由接受过超声成像培训的技术人员（称为超声医师）执行多普勒超声操作。超声医师用一个手持式小设备在所需检查的身体部位按压皮肤。根据需要将设备从一个部位移动到另一个部位。 进行这项检查，可能是为了替代血管
  • Echocardiogram - Mayo Clinic
    An echocardiogram uses sound waves to show how blood flows through the heart and heart valves Sensors attached to the chest and sometimes the legs check the heart rhythm during the test The test can help a healthcare professional diagnose heart conditions
  • Renal artery stenosis - Diagnosis and treatment - Mayo Clinic
    Doppler ultrasound High-frequency sound waves help a healthcare professional see the arteries and kidneys and check how they work This procedure also helps find if the blood vessels are blocked and measure how bad the blockage is CT scan This is a type of imaging that uses X-ray techniques to make detailed images of the body
  • Ecografía Doppler: ¿Para qué se usa? - Mayo Clinic
    La ecografía Doppler es una prueba no invasiva que puede usarse para medir el flujo de sangre que pasa por los vasos sanguíneos Funciona emitiendo ondas sonoras de alta frecuencia en los glóbulos rojos que circulan por el torrente sanguíneo Una ecografía común usa ondas sonoras para producir
  • Ankle-brachial index - Mayo Clinic
    The ankle-brachial index test is a quick, simple way to check for peripheral artery disease (PAD) The disease happens when narrowed arteries reduce the blood flow to the arms or legs PAD can cause leg pain when walking PAD also raises the risk of heart attack and stroke
  • Abdominal ultrasound - Mayo Clinic
    An abdominal ultrasound is a medical imaging test that uses sound waves to see inside the belly area, also called the abdomen It's the preferred screening test for abdominal aortic aneurysm But the test may be used to diagnose or rule out many other health conditions
  • Peripheral artery disease (PAD) - Diagnosis and treatment - Mayo Clinic
    Doppler ultrasound is a special type of ultrasound used to spot blocked or narrowed arteries Angiography This test uses imaging tests and a dye to look for blockages in the arteries The dye is given through a blood vessel It helps the arteries show up more clearly on the test images
  • Varicose veins - Diagnosis and treatment - Mayo Clinic
    To diagnose varicose veins, a healthcare professional might use a test called a venous Doppler ultrasound of the leg It's a painless test that uses sound waves to look at blood flow through the valves in the veins





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