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Parametric Harmonic-to-Fundamental Ratio Contrast Echocardiography: A Novel Approach to Identification and Accurate Measurement of Left Ventricular Area Under Variable Levels of Ultrasound Signal Attenuation
OBJECTIVES: We introduced a harmonic-to-fundamental ratio (HFR) of the radiofrequency (RF) signals that reduces confounding effects of attenuation. We studied whether HFR analysis of RF signals received from contrast microbubbles allows accurate measurement of the left ventricular (LV) cavity area u...
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| Main Authors: | , , , , , , |
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| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
2006
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| Assuntos: | |
| Acesso em linha: | https://ncbi.nlm.nih.gov/pmc/articles/PMC2034328/ https://ncbi.nlm.nih.gov/pubmed/17276474 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1016/j.ultras.2006.12.002 |
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