Balloon occlusion scintigraphy of aortopulmonary collaterals

C. Hardy, J. Wong, J Nilas Young, J. McCray

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


We evaluated two children with pulmonary atresia for coil embolization of aortopulmonary collateral vessels after placement of palliative aortopulmonary shunts. To determine vessel distribution and lung perfusion prior to collateral embolization, perfusion scintigraphy with technetium 99m-labeled macroaggregated albumin assessed pulmonary blood flow before and after balloon wedge catheter occlusion of the collaterals. In the first patient we found no perfusion defect during collateral occlusion, and we proceeded with embolization. In the second child, perfusion scintigraphy during occlusion of the collateral vessels demonstrated a filling defect, and embolization was not performed, thus avoiding the creation of a potential perfusion defect in this patient. Assessing the physiologic significance of aortopulmonary collateral vessels by utilizing temporary balloon occlusion of the collateral vessels and concurrent perfusion scintigraphy as an adjunct to selective angiography can provide a significant contribution to the safety and accuracy of coil embolization.

Original languageEnglish (US)
Pages (from-to)241-245
Number of pages5
JournalPediatric Cardiology
Issue number5
StatePublished - Sep 1994
Externally publishedYes


  • Aortopulmonary collateral
  • Cardiac catheterization
  • Coil embolization
  • Perfusion scintigraphy
  • Tetralogy of Fallot

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Cardiology and Cardiovascular Medicine


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