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Transient right-to-left shunt in massive pulmonary embolism

G Panoutsopoulos1, L Ilias, I Christakopoulou

  • 1Department of Nuclear Medicine, SOTIRIA Chest Hospital of Athens, Greece. ilias@compulink.gr

Summary

Massive pulmonary embolism can cause a temporary right-to-left shunt, detected by Tc-99m MAA lung scans. This shunt resolves as pulmonary vascular pressure decreases, suggesting passage through pulmonary arteriovenous anastomoses.

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