Revision 7 for 'Color comet-tail artifact'

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Color comet-tail artefact

The color comet-tail artefact is an ultrasonographic sign seen in a number of situations, when color Doppler scanning is performed. 

Typically the artefact, which resembles the grey-scale comet-tail artefact, is seen in situation when a small highly refractive (usually calcific) object is interrogated with color Doppler. Twinkle artefact occurs and immediately deep to the object a tail linear aliased band of color extends away from the probe.

The following are situations in which this sign may be present and helpful:

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