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Related Experiment Videos

[Artifacts in ultrasonic diagnosis].

H Meier1

  • 1Klinik für Nutztiere und Pferde, Universität Bern.

Tierarztliche Praxis. Supplement
|January 1, 1989
PubMed
Summary

Understanding ultrasound artifacts is crucial for accurate diagnostic sonography. Recognizing artifact causes prevents misinterpretations and can reveal diagnostic information.

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Area of Science:

  • Diagnostic medical imaging
  • Wave physics
  • Biomedical engineering

Context:

  • Diagnostic sonography relies on ultrasound wave principles.
  • Image formation can be affected by artifacts arising from wave theory, ultrasound system properties, and tissue characteristics.
  • Common artifacts include nonstructural echoes, signal removal, displacement, distortion, and dynamic distortions.

Purpose:

  • To elucidate the mechanisms behind common ultrasound artifacts.
  • To emphasize the importance of understanding artifact production for accurate interpretation.
  • To highlight how artifact recognition aids in diagnosis and prevention.

Summary:

  • Five categories of artifacts commonly encountered in diagnostic ultrasound are detailed: reverberation/reflection, tissue attenuation/acoustic shadowing, refraction/beamwidth, signal distortion, and dynamic distortion.
  • Understanding the underlying physics of artifact generation is key to identifying them.
  • Proper gain control and focusing can help prevent artifact formation.

Impact:

  • Facilitates accurate interpretation of diagnostic sonography images.
  • Minimizes the risk of misdiagnosis and incorrect treatment planning.
  • Artifact evaluation can provide supplementary diagnostic insights into tissue interfaces and cyst contents.

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