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CHAPTER SIXTEEN. Ultrasound
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The ultrasound frequency range used to facilitate tissue repair and wound healing is
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The amount of energy (W) per area of the sound head (cm2) delivered during a treatment time, expressed as W/cm2 is
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The formation of gaseous bubbles that implode, thereby releasing pressure that may cause tissue damage and facilitate breakdown of necrotic tissue, is termed
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Which of the following parameters is recommended to avoid the thermal effects on tissue when using high-frequency, contact ultrasound?
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a. Pulsed mode with 25% duty cycle
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b. Maximum of 5 minutes treatment time
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c. Water as the conduction medium
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Which of the following conditions is an absolute contraindication for the use of noncontact, low-frequency ultrasound?
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c. Arterial insufficiency
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Ultrasound is indicated in any of the wound healing phases except
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