Which artifact occurs when the ultrasound beam repeatedly bounces between two strong reflectors, giving rise to multiple echoes that simulate a deeper structure?

Which artifact occurs when the ultrasound beam repeatedly bounces between two strong reflectors, giving rise to multiple echoes that simulate a deeper structure?

• A. Reverberation
• B. Edge Effect
• C. Through Transmission Enhancement
• D. Anechoic

Answer: (A)

Reverberation happens when the ultrasound beam keeps bouncing back and forth between two strong reflectors. Each bounce sends another echo to the transducer, so the system places echoes at ever greater depths. The result is a series of evenly spaced echoes that make the overlying structure look deeper than it really is, even though there isn’t actual tissue at those deeper levels. This pattern—multiple, parallel echoes along the beam path—is the giveaway. Other options describe different phenomena: edge-related effects involve changes at borders or around curved interfaces, not repeated back-and-forth reflections; through transmission enhancement refers to brighter echoes beyond a structure due to better transmission, not extra echoes; anechoic means no internal echoes, indicating fluid, not a reverberation pattern.

Reverberation happens when the ultrasound beam keeps bouncing back and forth between two strong reflectors. Each bounce sends another echo to the transducer, so the system places echoes at ever greater depths. The result is a series of evenly spaced echoes that make the overlying structure look deeper than it really is, even though there isn’t actual tissue at those deeper levels. This pattern—multiple, parallel echoes along the beam path—is the giveaway.

Other options describe different phenomena: edge-related effects involve changes at borders or around curved interfaces, not repeated back-and-forth reflections; through transmission enhancement refers to brighter echoes beyond a structure due to better transmission, not extra echoes; anechoic means no internal echoes, indicating fluid, not a reverberation pattern.