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  • Title: Significance of the site of injection in unexpected right-to-left shunting.
    Author: Verzijlbergen F, van Tellingen C, Plokker HW.
    Journal: J Nucl Med; 1984 Oct; 25(10):1103-5. PubMed ID: 6384438.
    Abstract:
    Lung perfusion scintigraphy, with Tc-99m MAA injected into a left antecubital vein, revealed extensive uptake in the myocardium, kidneys, spleen, thyroid, and brain. After a right antecubital injection, a normal pulmonary perfusion pattern was found. This finding is specific for right-to-left shunting due to anomalous systemic venous drainage into the left atrium.
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