[Functional scintigraphy of the right heart].

Abstract

After intravenous injection of 99m-Tc-labelled HSA-microspheres indicator dilution curves of vena cava superior, total right heart and lungs are recorded, using a Nuclear Chicago Pho Gamma II camera and a Hewlett Packard 5407 A computer system. A method is described, which permits the determination of the distribution of transit times, the mean transit time and the ejection fraction of the right heart on the basis of these three curves. The usefulness of the method for cardiac investigations is discussed.