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  • Title: [A new approach to the tricuspid valve in Ebstein's anomaly by real time 3D echocardiography].
    Author: Taktak A, Acar P, Dulac Y, Abadir S, Chilon T, Roux D, Glock Y, Fournial G.
    Journal: Arch Mal Coeur Vaiss; 2005 May; 98(5):531-7. PubMed ID: 15966604.
    Abstract:
    Ebstein's anomaly affects the tricuspid valve with a large range of anatomical forms. Successful tricuspid valvuloplasty depends mainly on the ability to mobilise the leaflets. Evaluation of the leaflet surface is difficult with 2D echocardiography whereas 3D echocardiography provides intracardiac views of the valve. The authors used this method in 10 patients with 3 modes of imaging: biplane, real time and total volume. The study population (age: 1 day to 30 years) included: 1 prenatal diagnosis, 1 neonate with refractory cyanosis, 5 patients with mild tricuspid regurgitation, 3 patients with severe tricuspid regurgitation, 2 of whom underwent valvuloplasty. 3D echocardiography was disappointing in the foetus and neonate because of poor spatial resolution. The ventricular view of the tricuspid valve in older children and adults allowed analysis of tricuspid leaflet coaptation and of the mechanism of regurgitation. The commissures and leaflet surfaces were assessed. The results of surgical valvuloplasty could be evaluated by 3D echocardiography. 3D echocardiography is now transthoracic and a real time investigation. Technical advances are required before it comes into routine usage: a more manoeuvrable matricial probe (integrating pulsed and continuous wave Doppler) and larger volume real time 3D imaging with better resolution. Its role in the assessment of Ebstein's anomaly should be evaluated in a larger series of patients.
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