Tricuspid stenosis results in a color flow imaging study very similar to that of mitral stenosis except that the abnormal flow is seen to emerge from the tethered tricuspid valve leaflets. Stenosis of the pulmonary valves usually results in a very diffuse jet like that of aortic stenosis. It is, however, more readily detected than that of aortic stenosis. Most degrees of pulmonary stenosis fill the proximal pulmonary artery with a large mosaic, resulting from both aliasing and turbulence.
 |
| Fig.4.41 |
The pulmonary artery is best investigated using the short-axis approach. Figure
4.41 shows marked turbulence and aliasing within the pulmonary
artery from pulmonic stenosis. Here, abnormal flow is seen up
to the bifurcation of the main pulmonary artery.
2004