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 cells that …
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备在所需检查 …
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 …
Echocardiogram - Mayo Clinic
Nov 12, 2024 · 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 …
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 kidneys and check …
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 side of the …
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 contrast dye …
Erectile dysfunction - Care at Mayo Clinic - Mayo Clinic
Mar 1, 2025 · Mayo Clinic offers a full range of options for noninvasive testing of erectile dysfunction, including color Doppler ultrasound of penile blood flow. Erection pills, such as Viagra, Cialis and …
Vascular centers - Tests and procedures - Mayo Clinic
Apr 22, 2025 · Learn about the expertise and services at Mayo Clinic vascular centers for adults and children with conditions of the blood vessel and lymphatic systems.
Peripheral artery disease (PAD) - Diagnosis and treatment - Mayo Clinic
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 you …