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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 ...
Photoacoustic imaging or optoacoustic imaging is a biomedical imaging modality based on the photoacoustic effect.Non-ionizing laser pulses are delivered into biological tissues and part of the energy will be absorbed and converted into heat, leading to transient thermoelastic expansion and thus wideband (i.e. MHz) ultrasonic emission.
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.
Aesthetic medicine is a branch of modern medicine that focuses on altering natural or acquired unwanted appearance through the treatment of conditions including scars, skin laxity, wrinkles, moles, liver spots, excess fat, cellulite, unwanted hair, skin discoloration, spider veins [1] and or any unwanted externally visible appearance.
In 2023, 49.6% of Americans between ages 18 and 25 had used alcohol in the last month, according to U.S. Substance Abuse and Mental Health Services Administration national survey figures, down ...
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.
Hundreds of prisoners in California are helping battle the LA wildfires. Some earn $26.90 per 24-hour shift, or just over $1 an hour.
Republican Marjorie Taylor Greene said on Thursday she will chair a U.S. House of Representatives panel on government efficiency, working with billionaire Elon Musk and Vivek Ramaswamy in their ...
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