TEE - view past the left superior pulmonary vein.
LA: left atrium.
This view is obtained from the long-axis view of the left ventricle (film 7) by withdrawing the probe a few centimeters while tilting it forwards. In some patients, improvement can be achieved by turning the multiplane probe a few degrees. The pulsed Doppler probe is positioned 1 to 2 cm before the entry of the vein in the left atrium. Color Doppler mode is useful here, and visualizes an S wave of systolic filling, which is often bi- or even triphasic, a D wave of diastolic filling, and a reverse wave during atrial systole, which is more or less fast and prolonged. The value of this recording is essentially that it detects a typical appearance of high pulmonary venous pressure: small S wave, predominant D wave, reverse, ample and prolonged A wave.
|
Ouvrir avec :
