Cardiac catheterization images of pulmonary atresia with intact ventricular septum (PA/IVS)

(A) PA and lateral angiograms demonstrating an atretic PV in a neonate. There is a well-formed infundibulum (RV outflow tract), and multiple connections between the RV and the coronary arteries are evident. (* denotes coronary connections filled from the RV.)
(B) Posteroanterior angiogram in a neonate after surgery for PA/IVS. There is a hypoplastic RV, and multiple connections between the RV and coronary arteries are evident. (* denotes coronary connections filled from the RV.)
(C) PA and lateral angiograms of a patient with a tripartite RV after surgery for PA/IVS. The pulmonary valve leaflets are evident, and there is a well-formed inlet, body, and infundibulum of the RV. Coronary connections from the RV are present but less prominent than in angiograms A and B. (* denotes coronary connections filled from the RV.)