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Ultrasound—Contraindications
Ultrasound should not be used in the following areas: transcerebrally; near the heart or reproductive
organs; over viscera, eyes, ears, the spinal column, malignancies, the joint capsule in arthritic
conditions either acute or subacute, or over total joint replacements. Ultrasound should not be
used in cases of: cardiac pacemakers, pregnancy, implants, malignant or benign tumors, multiple
sclerosis, arteriosclerosis or weakened blood vessels, hemophilia, thrombosis and thrombophlebitis
either acute or subacute. Neither should ultrasound be used over bone in growing children,
where the skin suffers from any sensory impairment, nor in the area of the carotid sinus nerves,
visceral plexus or large autonomous ganglion.
Ultrasound—Precautions
Excessive doses of ultrasound can cause damage to tissue. Periosteal pain is an indication of
excess intensity. Should this occur, reduce the power and/or move the transducer more quickly
over the area being treated.
Any bleeding tendency is increased by heating because of the increase in blood flow and vascularity
of the heated tissues. Care should be used in treating patients who have bleeding disorders.
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