Volume-rendered, three-dimensional echocardiographic determination of the size, shape, and position of atrial septal defects: validation in an in vitro model

Détails

ID Serval
serval:BIB_C88FDB61EE04
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Volume-rendered, three-dimensional echocardiographic determination of the size, shape, and position of atrial septal defects: validation in an in vitro model
Périodique
American Heart Journal
Auteur(s)
Magni  G., Cao  Q. L., Sugeng  L., Delabays  A., Marx  G., Ludomirski  A., Vogel  M., Pandian  N. G.
ISSN
0002-8703 (Print)
Statut éditorial
Publié
Date de publication
08/1996
Volume
132
Numéro
2 Pt 1
Pages
376-81
Notes
Journal Article --- Old month value: Aug
Résumé
Accurate evaluation of atrial septal defect (ASD) size and shape is very important for the selection of patients for transcatheter occlusion. The ability of volume-rendered, three-dimensional echocardiography (3DE) in displaying ASDs in a dynamic mode has been demonstrated; however, its accuracy in sizing ASDs is unknown. To assess this, we performed 3DE of 10 explanted pig hearts in which ASDs of various locations, sizes, and shapes had been experimentally created. From en face 3DE views of the atrial septum containing the defects, major and minor diameters of the defect were measured by a blinded observer, and these data were compared to direct anatomic measurements. The correlations between 3DE and anatomy for the major and minor ASD diameters were y = 0.83x + 3.4 (r = 0.97, p < 0.0001) and y = 0.92x + 1.3 (r = 0.92, p < 0.0001) respectively. The correlation between the measures for major and minor axis ratio was y = 1.06 x - 0.052, r = 0.91, p < 0.0002. Good agreement between both methods of measurements was demonstrated for all measurements. In addition, 3DE portrayed the location and shape of the defects accurately. Thus 3DE provides excellent visualization of ASD and is able to accurately define the size of the defects. These qualitative and quantitative capabilities enhance the clinical potential of this technique in the appraisal of ASDs for decisions regarding application of closure devices.
Mots-clé
Animals Echocardiography/*methods Heart Septal Defects, Atrial/pathology/*ultrasonography Image Processing, Computer-Assisted Swine
Pubmed
Web of science
Création de la notice
28/01/2008 10:48
Dernière modification de la notice
20/08/2019 16:43
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