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Related Concept Videos

Ultrasonography01:17

Ultrasonography

Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called a...

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Optimal surface property for three-dimensional echo visualization.

Shunsuke Asakura1, Saki Nishikawa1, Kazumasa Orihashi2

  • 1Center for Innovative and Translational Medicine, Kochi Medical School, Nankoku, Japan.

Journal of Medical Ultrasonics (2001)
|October 14, 2017
PubMed
Summary

Optimizing surface properties in three-dimensional (3D) echo imaging minimizes signal dropout and grating lobes. Appropriate surface profiles enhance reflective planes, improving visualization during off-pump intracardiac surgery.

Keywords:
3D echoArtifactCardiac surgeryOff-pump surgery

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Area of Science:

  • Medical Imaging
  • Surgical Technology
  • Biomedical Engineering

Background:

  • Three-dimensional (3D) echocardiography (echo) is crucial for guiding off-pump intracardiac surgery.
  • Minimizing echo dropout and grating lobes is essential for optimal surgical guidance.

Purpose of the Study:

  • Determine the optimal surface property for minimizing echo dropout and grating lobes in 3D echo.
  • Investigate the relationship between surface profile and echo signal quality.

Main Methods:

  • Examined 13 specimens using 3D echo with rotation from 0° to 90°.
  • Recorded en face views in 3D zoom mode.
  • Compared brightness changes with surface profiles from microscopic images; analyzed grating lobe size and brightness.

Main Results:

  • Echo brightness decreases at large rotation angles depend on the effective reflective plane size.
  • Surface profile significantly influences reflection intensity.
  • Grating lobe size is affected by reflective plane size variation, not reflection intensity.

Conclusions:

  • Appropriate surface profiles can effectively eliminate echo dropout and grating lobes.
  • Manufacturing surfaces with adequate reflective surface size at various incident angles is a practical solution.
  • Optimized surface properties enhance 3D echo utility in cardiac surgery.