Tricuspid stenosis echocardiography
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
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Echocardiography
The diagnosis and the severity can be assessed by echocardiography [1].
2D-Echocardiography
- Thickening of valve leaflets
- Calcification
- restricted mobility
- " Doming " of the leaflets
Doppler Echocardiography
- Severity can be assessed by the transvalvular gradient
- Using continuous wave doppler across the tricuspid valve in apical-4-chamber view. The peak gradient can be calculated using the modified Bernoulli equation.
- Pressure half time can be used but is not validated for triscuspid stenosis.
- calculation of Tricuspid valve area with the continuity equation
- Tricuspid valve area = ( annulus PW Vti * Cross sectional area of the annulus) / valve CW Vti
Assessment of tricuspid stenosis severity with echocardiography
| Severity | mild | moderate | severe |
|---|---|---|---|
| Tricuspid valve area | - | - | <1 |
| Mean Pressure Gradient | <4 | 4-7 | >7 |
Differential diagnosis of a tricuspid mass causing obstruction
- Right atrial tumour
- Right atrial ball valve thrombus
- Large vegetations
References
- ↑ www.wikiecho.com