1. Incremental Utility of Real Time Three-Dimensional Tranthoracic Echocardiography in the Assessment of Congenitally Malformed Aortic Valve
- Author
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Mai Al‐Barakati, Ahmed N Galal, Hassan Chamsi-Pasha, Youssef F.M. Nosir, and Ashraf M. Anwar
- Subjects
Aortic valve ,medicine.medical_specialty ,business.industry ,Mean age ,medicine.disease ,medicine.anatomical_structure ,Bicuspid aortic valve ,Internal medicine ,Cardiology ,Medicine ,Ventricular outflow tract ,Radiology, Nuclear Medicine and imaging ,Cardiology and Cardiovascular Medicine ,business - Abstract
Objectives: To study the feasibility and additional value of real time three-dimensional transthoracic echocardiography (RT3D-TTE) for anatomical and functional assessment of malformed aortic valve (AV) compared to conventional two-dimensional TTE (2D-TTE). Methods: Malformed AV was evaluated in 35 patients (mean age 18 ±9.5years, 70% male) by both 2D-TTE and RT3D-TTE. The anatomical definition of aortic cusps (number, direction, and commissures) was evaluated by a 3-point visualization score (1: nonvisualized, 2: inadequate, 3: adequate). 2D-TTE and RT3D-TTE measurements included AV area and maximum diameters of both AV annulus and left ventricular outflow tract (LVOT). Results: Adequate visualization of AV cusps was achieved in 86% of patients by RT3D-TTE compared to 63% by 2D-TTE. The mean and median visualization score obtained by RT3D-TTE were higher than that by 2D-TTE. The opening of commissures was detected in (80%) of patients by RT3D-TTE compared to (34%) by 2D-TTE. AV area planimetry could be obtained in 77% of patients by RT3D-TTE compared to 43% by 2D-TTE. RT3D-TTE visualization score of AV cusps and commissures showed better interobserver agreement (Kappa: 0.62 and 0.72, respectively) than 2D-TTE (0.58 and 0.69, respectively). RT3D-TTE and 2D-TTE measurements of AV annulus and LVOT were well correlated (r = 0.85; P < 0.001) but the RT3D-TTE measurements were significantly larger than that obtained by 2D-TTE (2.05 ± 0.7 cm and 2.5 ± 0.86 cm vs 1.94 ± 0.67 cm and 1.98 ± 0.74 cm; P < 0.01). Conclusion: RT3D-TTE is a feasible technique that allows comprehensive quantitative and qualitative assessment of malformed AV. (Echocardiography, 2012;**:1-6)
- Published
- 2012
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