An alternative angiographic view to unmask the hidden patent ductus arteriosus during device closure.

Transcatheter closure of patent ductus arteriosus (PDA) with various devices has been evaluated worldwide and in selected cases can be performed successfully, thus avoiding the morbidity associated with surgical closure. Traditionally, left lateral projection is adopted for angiographic visualization of the PDA. However, rarely due to anatomical variations of the ductus, it may be difficult to properly visualize and deploy device in above-said traditional view. In such cases, right anterior oblique projection may be used for proper visualization.