fig1
From: Transcatheter closure of patent ductus arteriosus: review of author's experiences and observations
Figure 1. Selected frame from a cine-angiogram in the lateral view by balloon (B) occlusion (lower arrow) aortography, demonstrating patent ductus arteriosus (PDA). The catheter (C) is placed into the descending portion of the aorta from the main pulmonary artery (PA) via the ductus. Note conical or funnel shape of the PDA with a wider aortic end (ampulla) and smaller pulmonary end (upper arrow). DAo: Descending aorta. Reproduced from Ref.[7].
