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Titlebook: Nuclear Cardiology; Principles and Metho Aldo N. Serafini,Albert J. Gilson,William M. Smoak Book 1977 Springer Science+Business Media New Y

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Myocardial Perfusion Imaging with MAA Following Coronary Artery Surgeryegarding graft flow or regional distribution. Several methods have been used to evaluate bypass flow using hydrogen and xenon-133 washout. or videodensitometry.. None of these techniques provides information regarding the myocardial distribution of graft flow.
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Measurement of Myocardial Blood Flow Using 133Xeum itself. The disappearance, or “washout,” of radioactivity was measured by an external radiation-detection system placed over the myocardium. Kety had shown that the rate of washout of the diffusible indicator from tissue to blood was a function of tissue blood flow..
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Myocardial Imaging with Thallium-201ma camera and with a physical half-life that will permit distribution and a reasonable shelf life of the product, low radiation exposure, and a high myocardial-to-background uptake ratio. Obviously, this agent should also reflect myocardial blood flow accurately.
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