Therapeutic Ultrasound Information
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Definiton
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A therapeutic ultrasound unit emits sound waves at a very high frequency through the tissue and muscle, and causes vibrations. These vibrations are believed to slightly heat the tissues and promote healing.
Therapeutic vs. Diagnostic
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A therapeutic ultrasound unit emits sound waves continuously through the transducer. A diagnostic ultrasound (sonograph) uses a pulsed wave where the sound beam is emitted, then pauses while the transducer receives the return wave. This is how an image (a sonogram) is formed on a diagnostic ultrasound. A therapeutic ultrasound unit will not produce an image.
Indications
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Therapeutic ultrasounds are used for sports injuries, especially shoulder or hip injuries, arthritis and tendinitis.
Benefits
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Adding ultrasound to a therapy regimen can speed healing, and relax muscles prior to a physical therapy workout.
Risks
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Ultrasound poses very little risk since no radiation is involved. Therapeutic ultrasound is a form of deep heating, and should not be used on a pregnant uterus.
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