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US artifacts.

Myra K Feldman1, Sanjeev Katyal, Margaret S Blackwood

  • 1Department of Radiology, Western Pennsylvania Hospital, 4800 Friendship Ave, Pittsburgh, PA 15224, USA. myra.feldman@gmail.com

Radiographics : a Review Publication of the Radiological Society of North America, Inc
|July 17, 2009
PubMed
Summary
This summary is machine-generated.

Understanding ultrasonography (US) artifacts is crucial for accurate diagnosis. Recognizing and correcting these common image distortions improves diagnostic clarity and patient care.

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Area of Science:

  • Medical Imaging
  • Diagnostic Ultrasound
  • Physics of Ultrasound

Background:

  • Clinical ultrasonography (US) frequently presents image artifacts, potentially confusing physicians.
  • Artifacts can stem from incorrect scanning techniques or inherent physical limitations of ultrasound technology.

Purpose of the Study:

  • To explain the origins and characteristics of common ultrasonography artifacts.
  • To emphasize the importance of recognizing and managing these artifacts for improved image quality and patient care.

Main Methods:

  • Review of the physical principles governing ultrasound beam propagation and image processing.
  • Categorization of artifacts based on their underlying physical causes (beam characteristics, echo paths, velocity, attenuation).

Main Results:

  • Common artifacts include beam width, side lobe, reverberation, comet tail, ring-down, mirror image, speed displacement, refraction, attenuation, shadowing, and increased through-transmission.
  • Artifacts arise from errors in beam characteristics, multiple echo paths, velocity, and attenuation.

Conclusions:

  • Recognition of US artifacts is vital as they can indicate tissue composition and aid diagnosis.
  • Addressing correctable artifacts enhances image quality and supports optimal patient management.