Search results
Results from the WOW.Com Content Network
A Doppler ultrasound can estimate how fast blood flows by measuring the rate of change in its pitch, also called frequency. A technician trained in ultrasound imaging, called a sonographer, performs the Doppler ultrasound. The sonographer presses a small hand-held device against the skin over the area of your body being examined.
¿Qué es la ecografía Doppler? Respuesta de Sheldon G. Sheps, M.D. 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 alta frecuencia en los glóbulos rojos que circulan por el ...
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 graph. There have been vast technological advances in carotid ultrasounds, improving the quality and resolution of the images.
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 an area that is sore or tender.
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.
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 the blood vessels and measure their severity. CT scan.
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.
Transcranial Doppler test, Telestroke, Carotid ultrasound, Transient ischemic attack, Cerebrovascular disease, Intracer... ebral hemorrhage, Ischemic stroke. Show more areas of focus for Gyanendra Kumar, M.D.
Diagnosis. Your doctor likely will start by taking your medical history and performing a physical exam. He or she may have you undergo one or more diagnostic tests and procedures to either rule out other conditions that mimic vasculitis or diagnose vasculitis.
Overview. Aortic valve stenosis is a type of heart valve disease, also called valvular heart disease. The aortic valve is between the lower left heart chamber and the body's main artery, called the aorta.