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 'Enhancement Artifact' p2
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Searchterm 'Enhancement Artifact' found in 7 articles
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SONOACE 9900
www.medison.com/eng/pd/diagnostic/sa9900/info.asp From Medison Co.,Ltd.;
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Injection Rate
Ultrasound contrast agents (USCAs) improve the sensitivity of various ultrasound applications. They usually stay within the vascular space and can be injected several times. Nevertheless the contrast enhancement is limited caused by physiologic clearance and bubble destruction.

Different injection techniques to improve the imaging:
Bolus injection generally results in a more or less prolonged blooming phase and a relatively short enhancing period of approximately 2- to 3 minutes.
Slow injection provides markedly prolonged enhancement by minimizing over-contrast artifacts.
Continuous perfusion achieves stable and uniform enhancement, lasting until the infusion is stopped.

Continuous infusion yield a steady-state concentration of the USCAs, greater examination time with optimal enhancement, avoid bloom and possibly other artifacts. Continuous infusion also allows the sonographer to optimize the effective dose individually during the examination.

See also Power Modulation.
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