Using Ultrasound for Pregnancy
shared by 18001800 on Jan 04
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Ultrasound is a procedure used by therapists since the 1940s. It is applied with the help of round-headed wand placed in a direct contact with patient’s skin. The gel is used on a head surface to re...
duce friction and help the transmission of ultrasonic waves. Therapeutic ultrasound is done in a frequency of 0.8-0.3 MHz.
The ultrasound waves are caused by a piezoelectric effect with vibration crystals within a head of probe. The sound waves passing through a skin cause local tissues vibration. The cavitation and vibration helps in a local heating even though no sensation is felt by the patient. A lot of people when hearing the term “3d 4d ultrasound” visualize an image of a pregnant woman in doctor’s office. In situations where heating effects are not desirable, the ultrasound is pulsed instead of continuous transmission.
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