Related Experiment Video
Updated: Jun 10, 2026
05:57
Blood Flow Imaging with Ultrafast Doppler
Published on: October 14, 2020
[Twinkling artifact on Doppler US: clinical presentations]
H Hassani1, A Brasseur, G Raynal
1Radiologie et Imagerie médicale, CHU d'Amiens, place Victor Pauchet, 80054 Amiens cedex 1. hh_idr@hotmail.com
Journal De Radiologie
|July 27, 2010
Summary
Twinkling artifact, a Doppler signal fluctuation behind stones, can aid or mislead diagnosis. Sonographers must recognize this artifact
Area of Science:
- Medical imaging
- Ultrasound physics
- Doppler ultrasonography
Context:
- Twinkling artifact occurs behind strongly reflecting interfaces like urinary tract stones and gallstones.
- It is a common phenomenon in Doppler ultrasonography of calcified structures.
Purpose:
- To explain the technical basis of the twinkling artifact.
- To illustrate its diagnostic advantages and potential pitfalls in clinical scenarios.
Summary:
- The twinkling artifact is a Doppler signal disturbance behind echogenic structures.
- It results from rapid signal fluctuations caused by the granular nature of the interface.
- Understanding its characteristics is crucial for accurate interpretation.
Impact:
- Enhances sonographer awareness of a common artifact.
- Improves diagnostic accuracy by differentiating true signals from artifact.
- Highlights the importance of recognizing artifacts in medical imaging.
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