| ultrasonography |
Process by which the reflection of high-frequency sound waves is used to develop an image of a structure.
출처: sportsmedicine.about.com/library/glossary/blglossa...
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| ultrasound |
An electrical modality that transmits a sound wave through an applicator into the skin to the soft tissue in order to heat the local area for relaxing the injured tissue and/or disperse edema.
출처: sportsmedicine.about.com/library/glossary/blglossa...
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| ulcer |
An area of tissue erosion, for example, of the skin or lining of the gastrointestinal (GI) tract. Due to the erosion, an ulcer is concave. It is always depressed below the level of the surrounding tissue. Ulcers can have diverse causes. Ulcers on the skin are often due to irritation, as with bedsores, and they may become infected and inflamed as they grow.
출처: www.providence.org/alaska/tchap/glossary/U.htm
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| ultrasonography |
UL-tra-son-OG-ra-fee A procedure in which high-energy sound waves (ultrasound) are bounced off internal tissues or organs and make echoes. The echo patterns are shown on the screen of an ultrasound machine, forming a picture of body tissues called a sonogram. Also called ultrasound.
출처: goldbamboo.com/glossary-1u.html
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| ultraviolet radiation |
Electromagnetic radiation at wavelengths between 10 and 400 nanometers lying just beyond the high-energy (violet) end of the visible-light band of the solar spectrum; about 5% of the radiation the Earth receives from the sun, much of which is absorbed by the atmosphere. UV-A = 315 to 400 nanometers wavelength; UV-B = 280 to 315 nanometers; UV-C = 100 to 280 nanometers. UV-B is the part of the spectrum that causes sunburn and has been linked to skin cancer.
출처: biology.usgs.gov/s+t/SNT/noframe/zy198.htm
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