Ultrasound Flashcards
US Indications
1) ion exchange
2) count contracture and scar tissue (increases connective tissue extensibility
3) Pain and muscle spasms
4) Bursitis, tendonitis, and calcium deposits
5) Wound healing
- increases fibroblast activity
- increases proliferation of macrophages and growth factors
- promoting angiogensis
6) Plantar warts
US Contraindications
1) Same as those for therotherapy
2) Eyes, ears, sinuses, or over genitalia
3) Pregnancy
4) Cancer
5) Open epiphyses
6) Over spinal cord
7) Cardiac pacemaker
US Precautions
1) Same as those for thermotherapy
2) Over tendons
3) Fractures
4) Acute inflammation
US frequency
Deep- 1 MHz
Superficial- 3 MHz
US Intensity
Low:
0.1-0.5 w/cm^2
acute conditions
Moderate:
0.5-1.5 w/cm^2
subacute or acute deep tissue
Strong:
1.5-3.0 w/cm^2
chronic inflammation
US duration
10 minutes
Speed of US sound head movement
4 cm/second
