Abstract:Objective To evaluate the value of transthoracic echocardiography (TTE) and angiocardiography (ACG) in the interventional treatment of children with congenital heart disease (CHD) in a Wanbei municipal Hospital.Methods Sixty-two CHD children undergoing transcatheter interventional occlusion from April 2017 to December 2019 were enrolled as the research subjects,including 11 cases of atrial septal defect (ASD),23 cases of ventricular septal defect (VSD) and 28 cases of patent ductus arteriosus (PDA).TTE and ACG were applied to assess the location and size of the defect before placement of the occluder,and the interventional therapy was performed in the patients who were eligible for intervention.After the occluder was released,TTE and ACG were used to determine the location and shape of occluder and whether there was residual shunt.Results The preoperative diagnostic accuracy of TTE and ACG was 100% for three kinds of CHD . The inner diameters of PDA,VSD and ASD measured by TTE were (3.61±0.63)mm,(4.25±0.59)mm,(5.63±0.86)mm,respectively,which were significantly high than the corresponding results ［(3.26±0.65)mm,(4.03±0.58)mm,(4.89±0.80)mm］ measured by ACG ( P<0.05, P<0.01).Both TTE and ACG showed that the positions of occluder were fixed,and there were no residual shunt.TTE was superior to ACG in showing the influence of the device on the surrounding tissue.ConclusionTTE is superior to ACG in preoperative diagnosis and postoperative evaluation of interventional treatment of CHD in children,while ACG is superior to TTE in determining the defect size and guiding the selection of occluder.