Integrated backscatter and digital acquisition during myocardial contrast echocardiography: is there an advantage over conventional echocardiography for intracoronary injections?

Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography
S IsmailS Kaul

Abstract

This study was designed to answer the question of whether, despite their theoretic superiority, integrated backscatter imaging (IBS) and digital data acquisition (DA) offer any advantage over conventional echocardiography (CE) during quantitative myocardial contrast echocardiography. In vitro experiments were performed (1) to determine the microbubble concentration versus videointensity relationships for CE and IBS and (2) to define the relationship between flow through and microbubble transit rates for CE and IBS. These data were stored on videotape. In vivo experiments were performed whereby microbubbles were injected into the left anterior descending artery at different flow rates in 14 dogs and IBS and CE data were stored both in digital format and on videotape. Although the level of compression did not affect the microbubble concentration versus videointensity plots during IBS compared with CE, in practical terms the mean transit rate, peak intensity, and area under the curve were not affected by the level of compression for both forms of imaging as long as the postprocessing used for CE imaging was linear and the microbubble dose was small. In addition, although DA resulted in higher peak intensity and area under the curv...Continue Reading

References

Mar 1, 1990·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·A R JayaweeraS Kaul
Jan 1, 1989·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·M W KellerS Kaul
Mar 1, 1995·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·A R JayaweeraS Kaul
Jun 1, 1964·Circulation Research·H K THOMPSONH D MCINTOSH

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Citations

Jan 24, 2003·Journal of Tongji Medical University = Tong Ji Yi Ke Da Xue Xue Bao·Y DengQ Chang
Jan 1, 1997·Ultrasound in Medicine & Biology·A L Strauss, K D Beller
Jul 22, 1999·Ultrasound in Medicine & Biology·A L Strauss, K D Beller
Mar 28, 1998·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·K Q SchwarzS Steinmetz
May 11, 2000·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·M Scherrer-CrosbieM H Picard

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