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Attention will be focused on the direction of blood flow in both venous systems, and in the perforator veins, as well as on shunt detection. [nb 3] [23] A shunting of blood from the thigh veins back into the lower-leg veins produces a reflux situation. The veins most often found to be incompetent are the saphenous veins and the perforators ...
Medical ultrasound includes diagnostic techniques (mainly imaging techniques) using ultrasound, as well as therapeutic applications of ultrasound. In diagnosis, it is used to create an image of internal body structures such as tendons, muscles, joints, blood vessels, and internal organs, to measure some characteristics (e.g., distances and velocities) or to generate an informative audible sound.
Ultrasound computer tomographs use ultrasound waves to create images. In the first measurement step, a defined ultrasound wave is generated with typically Piezoelectric ultrasound transducers, transmitted in direction of the measurement object and received with other or the same ultrasound transducers. While traversing and interacting with the ...
Relatively high-energy ultrasound can break up stony deposits, ablate tissue, accelerate the effect of drugs in a targeted area, assist in the measurement of the elastic properties of tissue, and sort cells or small particles for research. [4] [5] Calcium oxalate (a type of kidney stone) fragments collected after treatment with lithotripsy.
A more specific evaluation can be made by ultrasound. [1] An ultrasound can be useful in situations in which an SVT occurs above the knee and is not associated with a varicose vein, because ultrasounds can detect more serious clots like DVTs. [2] The diagnostic utility of D-dimer testing in the setting of SVTs has yet to be fully established. [3]
The most accurate ultrasound test can detect 96% of ovarian cancers in postmenopausal women, new research suggests. The findings indicate that the test should replace the current standard of care ...
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