Abstract
Macroaggregated RISA lung scans in 60 children with various congenital heart diseases were correlated with abnormal patterns of certain specific types of abnormality. Renal activity in patients with right-to-left cardiovascular shunts and its amount could be used as an index to shunt magnitude. Scans following surgery helped evaluate its effectiveness. Patency of a sub-clavian-pulmonary anastomosis was verified by demonstrating diminished activity in the lung on the side of the shunt and in the kidneys. In severe cyanotic congenital heart disease, the lung scan served as an additional guide when findings suggestive of thrombosis were observed.
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