Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography
-
J Am Soc Echocardiogr · Apr 2011
Real-time three-dimensional transesophageal echocardiography in patients with secundum atrial septal defects: outcomes following transcatheter closure.
Successful transcatheter closure of atrial septal defects (ASDs) requires the accurate assessment of defect size and morphology. Assessment of ASD anatomy may be difficult by two-dimensional (2D) echocardiography. The aim of this study was to test the hypothesis that real-time three-dimensional (3D) transesophageal echocardiography (TEE) may provide more accurate morphologic assessment of ASDs than multiplane 2D TEE. ⋯ Three-dimensional TEE can identify ASD shape. Maximal dimensions on 3D TEE were well correlated with balloon-stretched 2D dimensions. Two-dimensional TEE can underestimate the area of complex-shaped ASDs, which may result in residual right-to-left shunting.
-
J Am Soc Echocardiogr · Apr 2011
Quantitative analysis of mitral valve apparatus in mitral valve prolapse before and after annuloplasty: a three-dimensional intraoperative transesophageal study.
Intraoperative real-time three-dimensional transesophageal echocardiography has been shown useful in the evaluation of the mitral valve (MV) apparatus, and dedicated commercial software allows its quantitative assessment. The aims of this study were to (1) quantify the effects induced by prolapse on MV anatomy in the presence of fibroelastic deficiency (FED) or Barlow's disease (BD), (2) assess the effect of surgery on the MV apparatus, and (3) investigate the potential role of three-dimensional transesophageal echocardiography in surgical planning. ⋯ Intraoperative three-dimensional transesophageal echocardiography allows quantitative evaluation of the MV apparatus in the presence of FED or BD and could be useful for immediate assessment of the surgical procedure.
-
J Am Soc Echocardiogr · Apr 2011
Validation of noninvasive measurements of cardiac output in mice using echocardiography.
Although multiple echocardiographic methods exist to calculate cardiac output (CO), they have not been validated in mice using a reference method. ⋯ In mice, CO calculated from two-dimensional parasternal long-axis images is most accurate when compared with flow probe measurements; however, pulmonary VTI-derived CO is subject to less variability.