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The comet tail artifact
M C Ziskin1, D I Thickman, N J Goldenberg
1Department of Diagnostic Radiology, Temple University Medical Center, Philadelphia, PA 19140.
Abstract:
A description and explanation of an unexpected echographic appearance in a patient who had sustained an abdominal shotgun wound is presented. In the B-scans, a trail of dense continuous echoes, simulating a comet tail, is seen distal to each lead pellet. This comet tail appearance is shown to be a type of reverberation artifact. The effect of object size, shape, composition, and orientation on the appearance of this artifact is demonstrated.