Doppler and Summary
Doppler Artifacts
- “Twinkling”
- Can improve detection of kidney stones
Narration
Doppler Artifacts
- ‘Aliasing’
- When speed is so fast it “wraps”
- Sudden shift – from blue to yellow
- Affected by scale – here >59 cm/s
Narration
Other Artifacts
- Lateral resolution (beam width)
- Elevational resolution (section thickness)
- Axial resolution
- Multipath
- Others
… be aware that things are not always as they appear!
Narration
Artifacts
Summarize:
Beware artifacts…
…use artifacts!
Narration
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