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  2. Medical ultrasound - Wikipedia

    en.wikipedia.org/wiki/Medical_ultrasound

    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.

  3. Phased array ultrasonics - Wikipedia

    en.wikipedia.org/wiki/Phased_array_ultrasonics

    Animation showing the principle of an ultrasonic scanner used in medical ultrasonic imaging. It consists of a beamforming oscillator (TX) that produces an electronic signal consisting of pulses of sine waves oscillating at an ultrasonic frequency, which is applied to an array of ultrasonic transducers (T) in contact with the skin surface that convert the electric signal into ultrasonic waves ...

  4. Therapeutic ultrasound - Wikipedia

    en.wikipedia.org/wiki/Therapeutic_ultrasound

    Ultrasound is applied using a transducer or applicator that is in direct contact with the patient's skin. Gel is used on all surfaces of the head to reduce friction and assist transmission of the ultrasonic waves. Therapeutic ultrasound in physical therapy is alternating compression and rarefaction of sound waves with a frequency of 0.7 to 3.3 ...

  5. Medical imaging - Wikipedia

    en.wikipedia.org/wiki/Medical_imaging

    A path of reflected sound waves in a multilayered structure can be defined by an input acoustic impedance (ultrasound sound wave) and the Reflection and transmission coefficients of the relative structures. [13] It is very safe to use and does not appear to cause any adverse effects. It is also relatively inexpensive and quick to perform.

  6. Atherosclerosis: What Men Need to Know About Plaque ... - AOL

    www.aol.com/atherosclerosis-men-know-plaque...

    An ultrasound to measure blood flow Angiography, which involves injecting a dye into your blood vessel to help doctors see obstructions with X-rays or computed tomography (CT) scans

  7. Sonophoresis - Wikipedia

    en.wikipedia.org/wiki/Sonophoresis

    The ultrasound waves generated from this device allow for penetration through biological tissue by molecular oscillation of the biological tissue they travel through. [1] [3] The amplitude of the wave can be modified by manipulating the displacement of the ultrasound horn for each half cycle as they are proportional.

  8. Ultrasound - Wikipedia

    en.wikipedia.org/wiki/Ultrasound

    Ultrasound is defined by the American National Standards Institute as "sound at frequencies greater than 20 kHz". In air at atmospheric pressure, ultrasonic waves have wavelengths of 1.9 cm or less. Ultrasound can be generated at very high frequencies; ultrasound is used for sonochemistry at frequencies up to multiple hundreds of kilohertz.

  9. This hack to clear red flaky skin on the face is going viral ...

    www.aol.com/news/hack-clear-red-flaky-skin...

    Oatmeal for sensitive skin: Colloidal oatmeal is "one of these things that dermatologists have been recommending for ages," Farhang explained. "What I love to do is create a little paste because ...