| Abstract:Objective：To study the application value of real time three dimensional transesophageal echocardiography (RT3D TEE) in measuring the maximal atrial septal defect (ASD) diameter.
Methods：The clinical data of patients diagnosed as central, secundum type, single hole ASD and hospitalized for transcatheter closure from January 2011 to June 2014 in a single center were prospectively analyzed. The maximal ASD diameters measured by RT3D TEE, two dimensional transthoracic echocardiography (2D TTE) and two dimensional transesophageal echocardiography (2D TEE) were compared. Correlation between the maximal ASD diameters measured by three methods and occluder waist diameter after release were analyzed.
Results：A total of 31 ASD patients were included. There was no significant difference between the maximal ASD diameters measured by RT3D TEE (［21.81±8.57］ mm), 2D TEE (［20.31±8.50］ mm), and 2D TTE (［23.08±10.89］ mm) and occluder waist diameter after release (［20.99±8.15］ mm). The maximal ASD diameters measured by RT3D TEE, 2D TEE, and 2D TTE were all highly correlated with the occluder waist diameter (r=0.902, 0.981, 0.897, respectively, P=0.000).
Conclusions：Compared with two dimensional echocardiography, RT3D TEE has no advantage in measuring the maximal ASD diameter. |