Ultrasound.Guide
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Doppler and Summary

  • Slide 1 of 4
  • Slide 2 of 4
  • Slide 3 of 4
  • Slide 4 of 4

Doppler Artifacts

  • “Twinkling”
  • Can improve detection of kidney stones

annotated ultrasound doppler artifacts


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Doppler Artifacts

  • ‘Aliasing’
  • When speed is so fast it “wraps”
  • Sudden shift – from blue to yellow
  • Affected by scale – here >59 cm/s

annotated aliasing doppler ultrasound artifacts


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Other Artifacts

  • Lateral resolution (beam width)
  • Elevational resolution (section thickness)
  • Axial resolution
  • Multipath
  • Others


… be aware that things are not always as they appear!

sample artifact

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Artifacts

sample artifact


Summarize:


Beware artifacts…


…use artifacts!


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Artifacts in Ultrasound

--- Table of Contents ---

Lesson NameMinutes id
Intro and Shadowing1
241
Edges and Mirrors1
242
Sidelobe1
243
Reverb Comets and Rings1
244
Doppler and Summary1 checkmark
245

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