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The Distribution of Rb⁸⁶ in the Dogs Heart¹

Athens, Greece

ABSTRACT

In vivo measurements of the regional myocardial Rb⁸⁶-uptake were performed in dogs with the chest open, using a small ophthalmic-counter. Myocardial tissue specimens from several regions of the ventricular wall were also measured in a well-type counter. The preponderance of the left ventricular uptake against that of the right ventricle was confirmed.

Furthermore, a significant difference was observed between the base and the apex of the left ventricle, with a higher uptake at the basal regions. No satisfactory explanation of this finding can be given.

There was no uniform premortal change in the distribution of the isotope over several regions of the ventricular wall.

FOOTNOTES

¹ Department of Clinical Therapeutics, University of Athens Medical School, (Chairman: Prof. B. Malamos), Alexandra Hospital, Athens, Greece.