Page of

Artefacts 

Artefacts
Chapter:
Artefacts
Source:
Focused Intensive Care Ultrasound
Author(s):

Russell Barber

, and Nick Fletcher

DOI:
10.1093/med/9780198749080.003.0004

This chapter will describe the technical assumptions that produce artefacts and explain acoustic shadowing, enhancement, and reverberation, including the origin of A- and B-lines. It will also describe near-field, side lobe, and mirror image artefacts and how to avoid them. Finally, it will introduce the concept of foreshortening and how off-axis imaging can produce false images.

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