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Answer From Sheldon G. Sheps, M.D. 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 flow.
La ecografía Doppler puede ayudar a diagnosticar varias afecciones, entre ellas: Coágulos sanguíneos. Mal funcionamiento de las válvulas de las venas de las piernas que puede hacer que la sangre u otros líquidos se acumulen en ellas, lo que se denomina insuficiencia venosa. Defectos de la válvula cardíaca y enfermedad cardíaca congénita.
Carotid (kuh-ROT-id) ultrasound is a safe, noninvasive, painless procedure that uses sound waves to examine the blood flow through the carotid arteries. It also evaluates the thickness of the carotid artery wall and checks for clots. One carotid artery is located on each side of the neck. These arteries deliver blood from the heart to the brain.
An abdominal ultrasound is a medical imaging test that uses sound waves to see inside the belly area, also called the abdomen. It's the preferred screening test for abdominal aortic aneurysm. But the test may be used to diagnose or rule out many other health conditions. An abdominal aortic aneurysm, or aortic aneurysm, is an enlarged area in ...
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 leg pain when walking. PAD also raises the risk of heart attack and stroke. The ankle-brachial index test compares the blood pressure in the ankle ...
Procedures to treat renal artery stenosis may include: Renal angioplasty and stenting. In this procedure, doctors widen the narrowed renal artery and place a device (stent) inside your blood vessel that holds the walls of the vessel open and allows for better blood flow. Renal artery bypass surgery. During a bypass procedure, doctors graft a ...
An echocardiogram uses sound waves to create pictures of the heart. This common test can show blood flow through the heart and heart valves. Your healthcare professional can use the pictures from the test to find heart disease and other heart conditions. Other names for this test are: Heart ultrasound. Heart sonogram.
Endoscopic ultrasound is a procedure that combines endoscopy and ultrasound to create images of the digestive tract and nearby organs and tissues. It also is called EUS. During EUS, a thin, flexible tube called an endoscope is placed in the digestive tract. An ultrasound device on the tip of the tube uses high-frequency sound waves to create ...
This blood pressure chart can help you figure out if your blood pressure is at a healthy level. It also can help you understand if you need to take some steps to improve your numbers. Blood pressure is measured in millimeters of mercury (mm Hg). A blood pressure reading has two numbers. Top number, called systolic pressure.
A complete blood cell count can tell whether you have enough red blood cells. Blood tests that look for certain antibodies — such as the anti-neutrophil cytoplasmic antibody (ANCA) test — can help diagnose vasculitis. Imaging tests. Noninvasive imaging techniques can help determine which blood vessels and organs are affected.
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