PMID: 9160908Jan 1, 1997Paper

Influence of data processing on cyclic variation of integrated backscatter and wall thickness in stunned porcine myocardium

Ultrasound in Medicine & Biology
A F van der SteenN Bom

Abstract

This study was performed to investigate the relationship between the cyclic variation of integrated backscatter and myocardial wall thickening in stunned myocardium. Different definitions of cyclic variation were evaluated to be able to compare with other studies. Ultrasound data were acquired from 10 open-chested Yorkshire pigs (25-33 kg) at baseline, during regional ischemia and during 30 min of stunning, using a broadband ultrasound transducer (3-7 MHz) sutured directly upon the left ventricular myocardial wall. Cyclic variation of integrated backscatter and myocardial wall thickening were calculated using three definitions obtained from the literature. Independent of the definition, cyclic variation of wall thickness and integrated backscatter were blunted during acute ischemia and returned transiently to or above baseline during the first minute of reperfusion, followed by a gradual decrease to a level under baseline during stunning. An early return of the cyclic variation of the integrated backscatter was not observed in pigs, independent of the data processing used. The relationship between integrated backscatter and wall thickness was maintained.

References

Aug 1, 1991·The Journal of Clinical Investigation·S A WicklineJ G Miller
Jan 1, 1990·Ultrasound in Medicine & Biology·H RijsterborghN Bom
Dec 1, 1989·The Journal of the Acoustical Society of America·K A WearJ G Miller
Aug 1, 1989·Journal of the American College of Cardiology·M R MilunskiS A Wickline
May 1, 1988·Ultrasonics·C T LancéeN Bom
Feb 1, 1988·The Journal of the Acoustical Society of America·J G Mottley, J G Miller
Feb 1, 1988·The Journal of the Acoustical Society of America·E I MadarasJ G Miller
Jul 1, 1985·Ultrasound in Medicine & Biology·R M GlueckJ E Pérez
Dec 1, 1985·The Journal of Clinical Investigation·S A WicklineJ E Perez
Jul 1, 1983·Ultrasonic Imaging·E I MadarasJ G Miller
Jan 1, 1993·Ultrasound in Medicine & Biology·H RijsterborghN Bom
Jul 1, 1995·Basic Research in Cardiology·D J Hearse
Jan 1, 1986·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·K A WearR L Popp

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Citations

Jun 5, 2002·Medical & Biological Engineering & Computing·J BaiP He
Jun 15, 1999·Medical & Biological Engineering & Computing·C M MoranP J Fish
Jun 7, 2002·Ultrasound in Medicine & Biology·Elisa E KonofagouJonathan Ophir
Feb 27, 1999·Ultrasound in Medicine & Biology·B BijnensF Van de Werf
May 20, 2006·The Journal of the Acoustical Society of America·Steven L BaldwinJames G Miller
Jul 16, 2011·Annual Review of Biomedical Engineering·Elisa KonofagouJonathan Vappou
Jan 28, 2003·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Jean-Marie GorceIsabelle E Magnin
Jan 11, 2011·Ultrasonic Imaging·Christopher W LloydJames G Miller
Jan 21, 2000·The Journal of the Acoustical Society of America·C S HallS A Wickline
May 29, 2000·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·N BomJ D Kasprzak

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