Doppler ultrasound: What is it used for? - Mayo Clinic
Jul 3, 2025 · 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 …
Carotid ultrasound - Mayo Clinic
Jan 15, 2025 · 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 …
Renal artery stenosis - Diagnosis and treatment - Mayo Clinic
Jul 12, 2025 · Your healthcare professional might order the following imaging tests: Doppler ultrasound. High-frequency sound waves help a healthcare professional see the arteries and …
多普勒超声：其用途是什么？ - 妙佑医疗国际 - Mayo Clinic
Jul 3, 2025 · 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 …
Echocardiogram - Mayo Clinic
Nov 12, 2024 · A standard echocardiogram begins with a 2D study of the heart. A 3D echocardiogram is available in some medical centers and hospitals. It's often done to get more …
Patent foramen ovale - Diagnosis & treatment - Mayo Clinic
Oct 25, 2022 · These changes are called Doppler signals. They appear in different colors on the echocardiogram. This test can show the speed and direction of blood flow in the heart. If you …
Peripheral artery disease (PAD) - Diagnosis and treatment - Mayo …
Aug 9, 2024 · Diagnosis To diagnose peripheral artery disease (PAD), a healthcare professional examines you. You are usually asked questions about your symptoms and medical history. If …
Mesenteric ischemia - Diagnosis and treatment - Mayo Clinic
Jun 24, 2025 · Angiography. A healthcare professional might recommend a CT scan, an MRI or an X-ray of your belly to find out if the arteries to your small intestine have narrowed. Adding a …
Carotid artery disease - Diagnosis and treatment - Mayo Clinic
Jul 24, 2025 · The goal in treating carotid artery disease is to prevent stroke. Treatment depends on how blocked the carotid arteries are, whether the blockage is causing symptoms, and the …
Ecografía Doppler: ¿Para qué se usa? - Mayo Clinic
Oct 4, 2023 · 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 …