| Objective To explore the clinical value of omni-plane transesophageal dynamic three-dimensional echocardiography in patients with atrial septal defect ( ASD ) .Methods 47 ASD patients were examined with transthoracic echocardiography ( TTE ), transesophageal echocardiography ( TEE ) and three-dimensional reconstruction ( 3D ). Among them, 23 accepted occluders. Their largest ASD diameters were made correlation analysis with diameters of Amplatzer occluders respectively. Three regression equations were achieved. 24 patients' ASD were observed through surgery and their largest 3D diameters were compared with the sizes of TEE, TTE and operation.Results ( 1 ) Three-dimensional reconstructed images could display the stereo-anatomic structures and relationships with surrounding tissues. ( 2 ) Correlation between diameters of reconstructed images and selecting occluders is the best ( r=0.89. P<0.05 ) . ( 3 ) There was significant difference between sizes of reconstructed images and those of surgery ( P<0.05 ) .So was TEE and surgery. But TTE sizes had no significant difference with operation sizes ( P>0.05 ) .Conclusions There was no significant difference between Transesophageal three-dimensional echocardiography and TEE in diameters of ASD. But three-dimensional reconstructed images could provide more detail anatomic information than TEE before surgery. So it plays an important role of selecting therapy and diameters of occluders, while TTE can be used in the first step of ASD examination. |
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