Nuclear Cardiology

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Abstract
Evaluation of Ventricular FunctionBasic TechniquesCardiac performance, or ventricular function, can be assessed with radionuclide techniques by either of two methods. The first involves analyzing the initial transit of an intravenously administered radionuclide bolus as it traverses the central circulation. This has been called first-pass radionuclide angiocardiography, and it involves sampling for only the first 15 to 30 seconds after the injection92. The high-frequency components of the time-activity curve of radioactivity during this period are analyzed quantitatively. The radioactive indicator mixes with the blood to such an extent that the count rates of radioactivity are proportional to changes . . .

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