Therapeutic Ultrasound Information

Therapeutic ultrasound is widely used in conjunction with exercise for rehabilitation. Because of the portability of the machine, the low cost, and the ease of use by the provider, ultrasound can be an effective tool for physical therapy.

Definiton

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

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

Therapeutic ultrasounds are used for sports injuries, especially shoulder or hip injuries, arthritis and tendinitis.

Benefits

Adding ultrasound to a therapy regimen can speed healing, and relax muscles prior to a physical therapy workout.

Risks

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.

References

• Sports Injury Clinic
• eMedicine