Acoustic shadowing

Acoustic shadowing on an ultrasound image is characterized by a signal void behind structures that strongly absorb or reflect ultrasonic waves. This happens most frequently with solid structures, as sound conducts most rapidly in areas where molecules are closely packed, such as in bone or stones. 

See also

Physics and imaging technology: ultrasound
Ultrasound - general index
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Article information

rID: 24967
Section: Physics
Synonyms or Alternate Spellings:
  • Sonographic acoustic shadowing

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Cases and figures

  • Case 1: cholelithiasis - acoustic shadowing
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  • Case 2: appendicolith - acoustic shadowing
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  • Case 3: renal calculus - acoustic shadowing
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