[The double aorta--rarity or artifact of ultrasound].
The double aorta is very rare. Only two cases are described in the literature. More frequent is a duplication artifact which is misinterpreted as being the image of a double aorta. This is caused by a refraction artifact which results from the difference in the velocity of sound between muscle tissue and fat tissue. Furthermore, a fat depot between parts of the rectus abdominis muscle has a prism-like effect. In most cases, this artifact can be avoided by lateral shifting of the transducer.
Heyne
J P
JP
Institut für Diagnostische und Interventionelle Radiologie, Friedrich-Schiller-Universität Jena.
D000273:Adipose Tissue; D000293:Adolescent; D001012:Aorta, Abdominal / Q000002:abnormalities* / Q000000981:diagnostic imaging*; D016477:Artifacts; D006328:Cardiac Catheterization; D006801:Humans; D006976:Hypertension, Pulmonary / Q000000981:diagnostic imaging; D008297:Male; D011859:Radiography; D014463:Ultrasonography