Doppler ultrasound: What is it used for? - Mayo Clinic
2023年12月5日 · A Doppler ultrasound can estimate how fast blood flows by measuring the rate of change in its pitch, also called frequency. A technician trained in ultrasound imaging, called a sonographer, performs the Doppler ultrasound. The sonographer presses a small hand-held device against the skin over the area of your body being examined.
Carotid ultrasound - Mayo Clinic
2023年1月12日 · The ultrasound technician may use a Doppler ultrasound, which shows blood flowing through the arteries. In a Doppler ultrasound, the rate of blood flow is translated into a graph. There have been vast technological advances in carotid ultrasounds, improving the quality and resolution of the images.
Ecografía Doppler: ¿Para qué se usa? - Mayo Clinic
2023年12月5日 · ¿Qué es la ecografía Doppler? Respuesta de Sheldon G. Sheps, M.D. 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 ...
Peripheral artery disease (PAD) - Diagnosis and treatment - Mayo …
2024年8月9日 · Sound waves create pictures of how blood moves through the blood vessels of the legs or feet. 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.
Vascular centers - Tests and procedures - Mayo Clinic
Learn about the expertise and services at Mayo Clinic vascular centers for adults and children with conditions of the blood vessel and lymphatic systems. Tests and procedures offered by Mayo Clinic vascular and endovascular doctors and surgeons
Renal artery stenosis - Diagnosis and treatment - Mayo Clinic
2022年5月3日 · Doppler ultrasound. High-frequency sound waves help your doctor see the arteries and kidneys and check their function. This procedure also helps your doctor find blockages in the blood vessels and measure their severity.
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.
Abdominal ultrasound - Mayo Clinic
2024年11月5日 · Risks. There are no known risks. Abdominal ultrasound is a safe, painless procedure. But you may have some brief discomfort if the healthcare professional presses on an area that is sore or tender.
Echocardiogram - Mayo Clinic
2024年11月12日 · Doppler echocardiogram. Sound waves change pitch when they bounce off blood cells moving through the heart and blood vessels. These changes are called Doppler signals. This part of the test measures the speed and …
Mesenteric ischemia - Diagnosis and treatment - Mayo Clinic
2023年6月2日 · Doppler ultrasound. This noninvasive test uses sound waves to check blood flow, which can determine ...