Premium
Color Doppler artifact from metallic carotid clamp.
Author(s) -
Gooding G A,
Saloner D,
Eisert W,
Nagarkar S
Publication year - 1991
Publication title -
journal of ultrasound in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 91
eISSN - 1550-9613
pISSN - 0278-4297
DOI - 10.7863/jum.1991.10.12.691
Subject(s) - artifact (error) , medicine , doppler effect , lumen (anatomy) , orientation (vector space) , carotid arteries , color doppler , signal (programming language) , transducer , biomedical engineering , radiology , computer vision , ultrasonography , acoustics , surgery , computer science , physics , geometry , mathematics , astronomy , programming language
The presence of mirror artifacts in color Doppler has been noted by others. In that report, the artifact arose from scattering at the smooth vessel wall and appeared as signal outside the lumen of the vessel, but with no change in flow direction. As experience increases, recognition of the artifacts of color Doppler will lead to a better understanding and more precise evaluation. This case shows that a band of metal around the carotid artery causes registration errors in color‐coded Doppler, and perhaps other metal foreign bodies in the soft tissues have similar potential. The specific appearance of the artifact will depend sensitively on the geometrical configuration of the metal body itself and on its orientation relative to the surrounding anatomy and the ultrasound probe. Appropriate placement of the transducer will reduce such artifact.