The _____ control is used by the operator to adjust the magnitude of the voltage pulse applied to the crystal. As it increases, the intensity of the transmitted pulse ______.

The _____ control is used by the operator to adjust the magnitude of the voltage pulse applied to the crystal. As it increases, the intensity of the transmitted pulse ______.

• A. Depth of scanning
• B. Dynamic range
• C. Output power
• D. Receiver gain

Answer: (C)

This is about controlling the energy sent into the tissue from the ultrasound transducer. The control that adjusts the voltage pulse applied to the crystal is the output power control. When you increase this setting, the amplitude of the electrical pulse rises, which raises the acoustic pressure in the crystal and therefore increases the intensity of the transmitted pulse. In contrast, depth of scanning changes how deep you image, dynamic range deals with the span of signal amplitudes the system can display, and receiver gain affects the amplification of echoes after they’re received, not the transmitted pulse. Higher output power boosts transmitted intensity, but it should be used with safety considerations in mind to limit patient exposure.

This is about controlling the energy sent into the tissue from the ultrasound transducer. The control that adjusts the voltage pulse applied to the crystal is the output power control. When you increase this setting, the amplitude of the electrical pulse rises, which raises the acoustic pressure in the crystal and therefore increases the intensity of the transmitted pulse. In contrast, depth of scanning changes how deep you image, dynamic range deals with the span of signal amplitudes the system can display, and receiver gain affects the amplification of echoes after they’re received, not the transmitted pulse. Higher output power boosts transmitted intensity, but it should be used with safety considerations in mind to limit patient exposure.