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  • Title: Scintigraphic myocardial imaging with 99mTc-labelled gluconate of experimentally produced cardiomyopathy in dogs.
    Author: Duska F, Novák J, Mazurová Y, Kubícek J, Vizda J, Kafka P.
    Journal: Nuklearmedizin; 1983 Feb; 22(1):44-8. PubMed ID: 6866777.
    Abstract:
    In 10 dogs experimental cardiomyopathy was produced using high intravenous doses of adrenaline and theophylline. The possibility of scintigraphic detection of this non-ischaemic damage was tested by means of 99mTc-gluconate. In 5 dogs the scintigraphic examination was carried out 4 hrs following the production of the damage. In all 5 cases a marked positivity of the heart scan was observed. The finding was confirmed by the radioactivity of tissue samples from all sections of the heart. In 3 out of 5 dogs the histological examination of the myocardium (PAS and HBFP staining) was positive. In the remaining 5 dogs the scan was performed 24 hrs following the development of the damage. A positive scintigraphic finding was observed in 4 cases, the degree of accumulation being lower than at 4 hrs. The radioactivities of tissue samples were also significantly lower as compared with the 4-hr values. In contrast, the histological findings were markedly positive in all 5 dogs. It follows that 99mTc-gluconate is capable of detecting in addition to infarctions non-ischaemic damages to the myocardium, too. The normalization of the finding is very quick. This experimental finding appears to be of importance in clinical practice.
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