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Internet Search Results
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 ...
Epididymitis - Symptoms and causes - Mayo Clinic
Overview Epididymitis (ep-ih-did-uh-MY-tis) is an inflammation of the coiled tube, called the epididymis, at the back of the testicle. The epididymis stores and carries sperm. Males of any age can get epididymitis. Epididymitis is most often caused by a bacterial infection, including sexually transmitted infections (STIs), such as gonorrhea or chlamydia. Sometimes, a testicle also becomes ...
Renal artery stenosis - Symptoms and causes - Mayo Clinic
Renal artery stenosis is when one or more arteries that carry blood to the kidneys narrow. These are called the renal arteries. Having narrowed renal arteries means the kidneys don't get enough oxygen-rich blood. The kidneys need enough blood flow to help filter waste products and remove excess fluids. Less blood flow to the kidneys may injure kidney tissue and raise blood pressure throughout ...
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.
Mitral valve disease - Symptoms and causes - Mayo Clinic
Mitral valve regurgitation. The mitral valve flaps, also called leaflets, may not close tightly. This causes blood to leak backward. Mitral valve stenosis. The flaps of the mitral valve become thick or stiff, and they can fuse together. This narrows the valve opening, which reduces blood flow from the left atrium to the left ventricle.
Echocardiogram - Mayo Clinic
This chamber is the heart's main pumping area. 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 direction of blood flow within the heart and vessels.
Giant cell arteritis - Diagnosis and treatment - Mayo Clinic
Doppler ultrasound. This test uses sound waves to produce images of blood flowing through your blood vessels. Magnetic resonance angiography (MRA). This test combines an MRI with the use of a contrast material that produces detailed images of your blood vessels. Let your doctor know ahead of time if you're uncomfortable being confined in a small space because the test is conducted in a tube ...
Uterine polyps - Symptoms & causes - Mayo Clinic
Uterine polyps attach to the uterus by a large base or a thin stalk. They can grow to be several centimeters in size. Uterine polyps can cause irregular menstrual bleeding, bleeding after menopause, very heavy menstrual flow or bleeding between periods.
Peripheral artery disease (PAD) - Symptoms and causes
Peripheral artery disease is usually a sign of a buildup of fatty deposits in the arteries, a condition called atherosclerosis. Treatment for PAD includes exercising, eating healthy foods, and not smoking or using tobacco.
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. It then uses a computer to make cross-sectional images, also ...
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