ultrasound treatment dosage

[skeith]

hi, is there any specification of ultrasound intensities that can be use to treat acute,sub acute and chronic state of lesion on different types of tissues such as bone/tendon/ligament?

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[thomasng90]

refer textbook of ELECTROTHERAPY:EVIDENCE APPROACH by John Law....

[physiobob]

Depth of the lesion to be treated:

• Superficial (up to 2cm) 3MHz Head
• Deep (2-5/6cm) 1Mhz Head

Pulse Ratio:

• Acute - Pulse 1:4 (20%)
• Sub Acute - Pulse 1:4/3/2/1 (20%,25%,33%,50%)
• Chronic - Pulse 1:2/1 (33%,50%)

Intensity required

• Acute - 0.1 - 0.3 W/cm2
• Sub Acute - 0.2 - 0.5 W/cm2
• Chronic - 0.3 - 0.8 W/cm2

Area to be treated in relation to the head size: e.g. 1 x, 2x, 3x etc.

Ultrasound treatment principle - 1 mins worth of U/S per treatment head area. Therefore longer if Pulse and longer for Larger Treatment Areas
Treatment time = 1 x (no of times treatment head fits onto the tissue to treat) x (pulse ratio)

This guideline was taken from data provided by Professor Tim Watson.