What change occurs when the output power is increased?

When the output power of an ultrasound system is increased, it results in a higher intensity of the sound waves transmitted into the body. This increase in intensity can lead to a greater exposure to the patient because the ultrasound waves penetrate deeper tissues. Higher output power translates to more energy being sent into the body, which may raise concerns about patient safety due to increased thermal and mechanical effects on tissues.

While it's true that increasing output power can improve the overall strength of the echoes returning to the transducer and potentially affect image quality, the immediate consequence of raising output is primarily that it exposes the patient to a greater intensity of ultrasound waves. Hence, increased patient exposure is a valid consideration when evaluating the parameters of ultrasound operation, especially regarding safety standards and guidelines pertaining to wavelength exposure limits.