Ultrasound can be used for both therapeutic heating and diagnostic imaging.

Ultrasound can be used for both therapeutic heating and diagnostic imaging.

• A. It can only be used for diagnostic imaging.
• B. It can be used for therapeutic heating and diagnostic imaging.
• C. It cannot be used for tissue destruction.
• D. It is used to monitor bone density.

Answer: (B)

Ultrasound energy can be used in two distinct ways depending on how it’s applied. For diagnostic imaging, the machine emits sound waves at low energy and high frequency, then listens for echoes to create images of soft tissues, organs, and blood flow. The energy is kept low to avoid heating tissues, so the primary effect is image formation. For therapeutic heating, the same basic principle is used but energy is delivered at higher intensity or in a focused manner. This increased energy raises tissue temperature (and can produce mechanical effects) to promote healing, relieve pain, or even ablate targeted tissue in some procedures. That combination—imaging at diagnostic levels and heating or ablating at therapeutic levels—is why the statement is correct. It’s not limited to imaging, and it can be used in ways that affect tissue, unlike the idea that it only images or that it can’t cause tissue destruction. Likewise, bone density isn’t assessed with standard ultrasound, so that option doesn’t fit.

Ultrasound energy can be used in two distinct ways depending on how it’s applied. For diagnostic imaging, the machine emits sound waves at low energy and high frequency, then listens for echoes to create images of soft tissues, organs, and blood flow. The energy is kept low to avoid heating tissues, so the primary effect is image formation. For therapeutic heating, the same basic principle is used but energy is delivered at higher intensity or in a focused manner. This increased energy raises tissue temperature (and can produce mechanical effects) to promote healing, relieve pain, or even ablate targeted tissue in some procedures. That combination—imaging at diagnostic levels and heating or ablating at therapeutic levels—is why the statement is correct. It’s not limited to imaging, and it can be used in ways that affect tissue, unlike the idea that it only images or that it can’t cause tissue destruction. Likewise, bone density isn’t assessed with standard ultrasound, so that option doesn’t fit.