Pre-operative transthoracic live three-dimensional echocardiography in the assessment of mitral stenosis: clinical experience

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Article Title:	Pre-operative transthoracic live three-dimensional echocardiography in the assessment of mitral stenosis: clinical experience
Authors:	Penteridis Ioannis, Mornoş Cristian, Ionac Adina, Feier Horia, Gaspar Marian, Drăgulescu Ştefan Iosif
Affiliation:	Victor Babes University of Medicine and Pharmacy, Timisoara, IInd Cardiology Clinic, IInd Cardiovascular Surgery Clinic.
Abstract:	We investigated three-dimensional (3D) live transthoracic echocardiography (TTE) in the assessment of mitral stenosis. Bidimensional (2D) TTE and 3D TEE was performed in 42 patients with mitral stenosis concomitent with cardiac catheterisation, prior to valve surgery. Using a surgical scoring protocol for recognition of the valvular segments, 2D and 3D methods were compared. Adequate echocardiographic visualization of the mitral segments was more frequently obtained by 3D TTE than by 2D TTE. Total 3D TTE score were significantly better than 2D TTE score. Using surgical classification as gold standard, the sensibility and specificity were 93% and 87 % for 3D TEE, and 86% and 79% for 2D TTE. The opening area determined by 3D TEE showed better linear association with the area determined intraoperative or invasively by Gorlin formula compared with 2D TTE. In conclusions, 3D TTE was superior to 2D TTE for the analysis of mitral stenosis and could be used for the accurate identification of the severity.
Keywords:	mitral valve stenosis, mitral valve area, three-dimensional live transthoracic echocardiography, bidimensional transthoracic echocardiography, Gorlin formula.
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*Correspondence:	Cristian Mornos, MD, PhD, Victor Babes University of Medicine and Pharmacy, Timişoara Institute of Cardiovascular Disease, 13 A Gh. Adam st., tel: +40 256207363, fax: +40 256207362, mobile: +40744790381 e-mail: mornoscristi@yahoo.com