Which statement accurately describes reverberation artifacts?

Which statement accurately describes reverberation artifacts?

• A. They create additional boundaries beyond actual surfaces
• B. They reduce resolution at focus
• C. They cause attenuation to be uniform
• D. They enhance all boundaries equally

Answer: (A)

Reverberation artifacts come from the ultrasound wave bouncing back and forth between two strong reflectors, such as the transducer face and a smooth, highly reflective surface. Each bounce sends another echo to the transducer, which the system displays as an extra boundary deeper in the image. Because each round trip adds the same travel time, these echoes appear at regular, evenly spaced depths, creating multiple parallel lines that don’t correspond to real structures. This is why reverberation shows up as additional boundaries beyond what actually exists, often forming a ladder-like or comet-tail appearance beneath a true interface. The other statements don’t capture what defines reverberation: it isn’t about a general reduction in resolution at the focal area, nor about uniform attenuation of signals, nor about enhancing real boundaries. It’s specifically the appearance of extra, artificial boundaries produced by repeated internal reflections.

Reverberation artifacts come from the ultrasound wave bouncing back and forth between two strong reflectors, such as the transducer face and a smooth, highly reflective surface. Each bounce sends another echo to the transducer, which the system displays as an extra boundary deeper in the image. Because each round trip adds the same travel time, these echoes appear at regular, evenly spaced depths, creating multiple parallel lines that don’t correspond to real structures. This is why reverberation shows up as additional boundaries beyond what actually exists, often forming a ladder-like or comet-tail appearance beneath a true interface.

The other statements don’t capture what defines reverberation: it isn’t about a general reduction in resolution at the focal area, nor about uniform attenuation of signals, nor about enhancing real boundaries. It’s specifically the appearance of extra, artificial boundaries produced by repeated internal reflections.