Value of transthoracic real-time three dimensional echocardiography on selecting occluder of atrial septal defect

Lixun Liu; Jun Zhang; Jun LI; Liwen Liu

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Value of transthoracic real-time three dimensional echocardiography on selecting occluder of atrial septal defect

VernacularTitle:经胸实时三维超声心动图指导房间隔缺损封堵器选择
Author: Lixun LIU ; Jun ZHANG ; Jun LI ; Liwen LIU
Publication Type:Journal Article
Keywords: Echocardiography,real-time three-dimensional; Heart septal defect,artial
From: Chinese Journal of Ultrasonography 2009;18(2):132-135
CountryChina
Language:Chinese
Abstract: Objective To evaluate clinical application of transthoraeic real time three-dimensional echocardiography(RT-3DE) on selecting oecluder of the atrial septal defect(ASD). Methods ASD size and its rim of thirty patients with ASD were measured by transthoracic two-dimensional echoeardiography(2DE) on various views before occlusion. ASD was reconstructed by transthoracic RT-3DE and color RT-3DE. The images were studied in multiple orientations and cross sections, including the morphology, area, longest diameter,and cycloidal dimension of substitution (CDS) was calculated. The waist size of occluder was measured after releasing oecluder. Results Among 30 eases of ASD, there were 22 cases(73.3 %) with non-round like defects. In various morphous of ASD,the waist morphology of occluder still was round-like after releasing oeeluder. There was no significant difference between waist area of occluder and measured area of ASD by RT-3DE and color RT-3DE. All ASD diameters measured by 2DE were smaller than the dimension of waist after releasing, ASD longest diameters measured by RT-3DE and color RT-3DE were larger than the dimension of waist after releasing,but were no significant differences with CDS. Significant correlation was existed between the CDS of ASD measured by RT-3DE and the size of selected occluder (Y = 0.29 + 1.132 X , r = 0.93, P<0.0001), and the waist size of released occluder(Y = - 0.160 + 1.063 X , r = 0.98, P 0.0001). Oceluder was firmly fixed without falling off in all patients. Conclusions Transthoracic RT-3DE has certain value on selection of ASD occluder.