Reverberation artifact

Reverberation artifact occurs when an ultrasound beam encounters two strong parallel reflectors.

When the ultrasound beam reflects back and forth between the reflectors ("revereberates"), the ultrasound transducer interprets the sound waves returning from the reverbration as deeper structures since it took longer for the wave to return to the transducer.

Reverberation artifacts can be improved by changing the angle of insonation so that reverberation between strong parallel reflectors cannot occur.

There are two subtypes of reverberation artifact:

  • comet-tail artifact: a short train of reverberations from an echogenic focus which has strong parallel reflectors within it (e.g. cholesterol crystals in adenomyomatosis)
  • ring down artifact: a type of continuous sound wave returning to the transducer, often caused by fluid trapped between gas bubbles

See also

Ultrasound - physics
Ultrasound - general index
Share article

Article information

rID: 31989
Section: Physics
Synonyms or Alternate Spellings:
  • Reverberation artefact

Support Radiopaedia and see fewer ads

Cases and figures

  • Drag
    Figure 1
    Drag here to reorder.
  • Drag
    There is an echog...
    Case 1 : from a glass foreign body
    Drag here to reorder.
  • Drag
    Case 2: from a metal foreign body
    Drag here to reorder.
  • Drag
    Case 3 : Coin in stomach
    Drag here to reorder.
  • Updating… Please wait.

    Alert accept

    Error Unable to process the form. Check for errors and try again.

    Alert accept Thank you for updating your details.