Fig. 5
From: Percutaneous closure of simple congenital heart diseases under echocardiographic guidance
The steps of percutaneous expansion of PVS. A The guidewire was advanced into the RA. B The guide-wire was introduced into the RV. C The sheath was advanced into the RV. D The sheath was advanced into the PA. E Balloon dilation of narrowed PV. F Anatomical morphology after PVS balloon angioplasty. RA: right atrium; LA: left atrium; LV: left ventricle; RV: right ventricle; IVC: inferior vena cava; SVC: superior vena cava; PVS: pulmonary valve stenosis; PA: pulmonary artery