Ultrasound Rate of Heating Per Minute
Intensity W/cm
2
1MHz
3MHz
0.5
.04°C
.3°C
1.0
.2°C
.6°C
1.5
.3°C
.9°C
2.0
.4°C
1.4°C
Set at 1.5 W/cm
2
with 3 MHz ultrasound would
require only slightly more than 3 minutes to
reach vigorous heating