Contrast Imaging
Vivid S70 / S60 – User Manual 5-45
BC092760-1EN 01
For further information on quantification, see ‘Quantitative
Analysis’ on page 9-1.
Contrast Echocardiography Box
Contrast Echocardiography Box: the European Society of
Cardiology provides useful information on contrast
echocardiography on the Internet here: https://
www.escardio.org/Guidelines-&-Education/Practice-tools/
EACVI-toolboxes/Contrast-Echo/
Contrast-Echocardiography-Box
Misdiagnosis based on image artifacts
Misdiagnosis in ultrasound contrast images may be caused by
several artifacts, most importantly:
Motion artifacts: gives rise to signals independently of
contrast presence. This may be caused by patient movement;
including respiration, or by probe movement influenced by the
operator.
Regional drop outs: caused by unintentional destruction of
the contrast agent, too low concentration of contrast agent,
poor acoustic penetration due to rib/lung shadows or system
failing to detect the contrast agent due to erroneous settings
induced by the operator.
Tissue harmonics: gives contrast-like signals independently
of the presence of contrast agent.
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