RIU 320 Lecture Notes - Lecture 69: Visual Artifact, Grafting, Lead Zirconate Titanate
21 Jun 2020
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Document Summary
Appears as a hyperechoic region beneath tissues with abnormally low attenuation. Hyperechoic regions are brighter and the same color as the foreground (or echoes) of the image. Although the number of reflectors on the image is correct, some of them are overly bright. Hint: enhancement artifact is the opposite of shadowing. It may provide valuable diagnostic information that helps to characterize tissue. Enhancement artifact is entirely unrelated to the speed at which sound travels in a medium. Hyperechoic (appears the same as the foreground color) Located beneath a structure with abnormally low attenuation. Special form of enhancement in which a side-to-side region of an image appears brighter than tissues at other depths. Focal banding has the same appearance as an incorrect tgc setting. When a beam is strongly focused, the intensity in the focal zone is increased. Reflections from the focal zone may be abnormally strong. Structures at the focus appear brighter than those at other depths.
