Dec 5, 2023 · 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 …

Dec 5, 2023 · 多普勒超声是一种无创检查，可用于测量流过血管的血流。其工作原理是高频超声波在碰到血流中循环的红细胞时会发生反射。常规超声使用声波生成图像，但不能显示血流。 …

Nov 5, 2024 · 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 …

May 3, 2022 · 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 …

Nov 12, 2024 · Ecocardiograma Doppler. Las ondas sonoras cambian de tono cuando rebotan en las células sanguíneas que fluyen por el corazón y los vasos sanguíneos. Estos cambios se …

Apr 20, 2024 · Para diagnosticar las venas varicosas, el profesional de atención médica puede utilizar una prueba que se conoce como ecografía Doppler venosa de la pierna. Es una …

Jan 15, 2025 · 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 …

Oct 25, 2022 · Color-Doppler. When sound waves bounce off blood cells moving through the heart, they change pitch. These changes are called Doppler signals. They appear in different …

May 3, 2024 · Risks. Diagnostic ultrasound is a safe procedure that uses low-power sound waves. There are no known risks. ...

Aug 9, 2024 · 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 …