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Contrast echocardiography
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2000 (English)In: Zeitschrift für Kardiologie, ISSN 0300-5860, E-ISSN 1435-1285, Vol. 89, 86-96 p.Article in journal (Refereed) Published
Abstract [en]

The intravenous application of an ultrasound contrast agent induces enhanced display of blood in all its pathways. Within cardiology, this principle is mainly utilized for signal enhancement of color Doppler and spectral Doppler in order to improve quantification of congenital and acquired valvular lesions and also for improved endocardial delineation during stress tests and in the evaluation of LV function. The new domaine of myocardial perfusion imaging by contrast echocardiography, however, needed profound technical developments before realization of the clinical potential could even be conceived. These are based on the complex reactions of microbubbbles in the acoustic field in order to allow the sensitive and bubble specific display of intramyocardial contrast effects. The presently available acquisition techniques, second harmonic imaging and harmonic power Doppler, demonstrate significant improvements if compared to traditional fundamental 2-d echocardiography, however, they are still subjected to important limitations. There are many anatomical, physiological, and technical reasons for insufficient display of intramyocardial microbubbles, the most important one being attenuation. It is hoped that the most recently developed imaging modality, pulse inversion technique, allows the necessary diagnostic accuracy and reproducibility in myocardial perfusion imaging.

Place, publisher, year, edition, pages
2000. Vol. 89, 86-96 p.
Keyword [en]
Doppler, echocardiography, contrast agent, myocardial perfusion
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-27213Local ID: 11862OAI: oai:DiVA.org:liu-27213DiVA: diva2:247764
Available from: 2009-10-08 Created: 2009-10-08 Last updated: 2017-12-13

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Wranne, Bengt

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Faculty of Health SciencesClinical PhysiologyDepartment of Clinical Physiology
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