PMID: 3750554Jul 1, 1986Paper

Myocardial perfusion defects in contrast echocardiography: spatial and temporal localisation

Ultrasound in Medicine & Biology
V MiszalokM Schartl

Abstract

The position and size of experimental myocardial perfusion defects can be detected by using the echocardiographic contrast-medium Echoson together with digital image processing techniques. Video tapes showing the important sequences before, during and after cardial inflow of echo-enhancing agents are fed in total length into a digital image processing unit. The myocardial circumferences are then chosen interactively. All the frames are analysed and a synthetic picture is compiled, and shows the myocardial echo densities in a single, highly condensed form. Digital subtraction of blank values (condensed sequences before injection of contrast medium) greatly improves readability. Further concentration of the remaining information yields the following diagrams: flow/circumferential position (time summation); flow/time (position summation), which contain the desired information on homogeneity or defects of echo density against time and myocardial position.

References

Apr 1, 1984·Journal of the American College of Cardiology·M D SmithA N DeMaria
Jan 1, 1984·Journal of the American College of Cardiology·S B FeinsteinE Corday
Jan 1, 1984·Journal of the American College of Cardiology·R A LevineR S Meltzer
Jan 1, 1982·Ultrasound in Medicine & Biology·R S MeltzerC T Lancée

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Citations

Nov 1, 1988·Journal of Biomedical Engineering·P N Wells
Jan 1, 1989·Ultrasound in Medicine & Biology·K J Taylor, P N Wells
May 1, 1989·The British Journal of Radiology·P N Wells
Jan 1, 1990·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·P N Wells

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