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Intelect® Mobile Ultrasound
OVERVIEW OF ULTRASOUND THERAPY - COMMON TERMS (CONTINUED)
Ultrasound Intensity – Ultrasound power delivered to the patient expressed in total power as watts (W) or in terms of the sound
head’s effective radiating area, watts per centimeter squared (W/cm
2
) .
Description of Ultrasonic Field
The spatial distribution of the radiated field is essentially a collimated beam of the ultrasonic energy having a cross-sectional area of
8 .5 cm
2
for the 10 cm
2
sound head when measured at a point 5 mm from the transducer face .
The energy distribution within the radiated field is 3 .0 W/cm
2
maximum and it takes a generally conic shape, having decreasing
intensity at progressively increasing distance from the face of the transducer . This field distribution applies for the radiation emitted
into the equivalent of an infinite medium of distilled, degassed water at 30 °C and with the line voltage variations in the range of 10%
of the rated line voltage .
ABOUT ULTRASOUND THERAPY
