By Harvey Feigenbaum (auth.), Richard S. Meltzer, Jos Roelandt (eds.)
Why a publication on distinction echocardiography? over the last dozen years sufficient adventure has gathered to warrant a extra huge therapy of this system. moreover, there are new advancements that recommend elevated medical software for distinction echocardiography sooner or later. This e-book goals to summarize the "state of the artwork" for these drawn to echocardiography - possibly mostly cardiologists, yet right here and there these of a extra technical bent will locate invaluable details to boot. We consider extra uncomplicated figuring out of microbubble dynamics is critical to increase study for such functions as transmission during the lungs, videodensitometric quantitation of cardiac output, intracardiac shunts, and so on. All of those subject matters are widely handled. The reader will word that a few of the medical chapters are written through pediatric cardiologists. this is often in simple terms common, in view that shunt detection and research of stream relationships are quite extra vital in congenital center ailments, and cur rently symbolize crucial makes use of for distinction echo cardiography in day-to day practice.
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Extra resources for Contrast Echocardiography
16. Reale A, F Pizzuto, P Gioffre, A Nigri, F Romeo, E Martuscelli, E Mangieri, G Scibilia: Contrast echocardiography:transmission of echos to the left heart across the pulmonary vascular bed. Eur Heart J 1:101-107, 1980. 17. Meltzer R, 0 Sartorius, C Lancee, P Serruys, P Verdouw, C Essed, J Roelandt: Transmission of ultrasonic contrast though the lungs. Ultrasound Med BioI 7: 377-384, 1981. 18. Bommer W, G Tickner, J Rasor, T Grehl, D Mason, A DeMaria: Development of a new echographic contrast agent capable of pulmonary transmission and left heart opacification following peripheral venous injection.
7. Ophir J, A Gobuty, R McWhirt, N Maklad: Ultrasonic backscatter from contrast producing collagen microspheres. Ultrasonic Imaging 2:67-77,1980. 8. Lubbers J, J Van den Berg: An ultrasonic detector for microgasemboli in a bloodflow line. Ultrasound Med BioI2:301-31O, 1976. 9. Weibel ER: Morphometry of the Human Lung, pp 78-82. Academic Press, NY, 1975. 10. Butler B, B Hills: The lung as a filter for microbubbles. J Appl Physio147:537-543, 1979. 1 I. Epstein P, M PIes set: On the stability of gas bubbles in liquid-gas solutions.
We became interested in direct imaging of intracardiac blood flow patterns when we noted that M -mode echocardiograms contained signals within heart cavities that were cardiac cycle related and changed with the phase of respiration as well as with altered cardiac function in disease states . It seemed that only micro bubbles could be generated and absorbed so rapidly and also be influenced by ambient pressure changes related to respirations. In addition, we encountered a patient with mitral prolapse who filled his left ventricular outflow tract with dense, transient contrast effect during the performance of a vigorous Valsalva maneuver.