ME LAX
The ME LAX view (120-140°) is obtained by positioning the probe in the mid-esophagus. The multiplane angle is rotated to approximately 140 degrees. Structures seen include the LA, LV, MV (P2-A2), LVOT and AV. Diagnostic information obtained from this view includes regional LV function (inferolateral and anterior septal walls) and MV and AV function. The membranous interventricular septum as well as the RV wall that subtends the RV outflow tract (RVOT) can also be imaged.
Structures & Chambers
- LA
- LV – Anterior septal & Inferolateral walls
- MV – P2 A2 scallops
- LVOT
- AV
- Proximal Asc Ao
- Coronary sinus
- Pericardium
Mitral Valve Evaluation in the ME LAX view.
The P2 scallop of the posterior leaflet and the A2 scallop is seen.
Further Reading:
Quader et al. Two and three dimensional echocardiography for pre-operative assessment of mitral valve regurgitation. Cardiovascular Ultrasound 2014.
Tsang & Lang. Three-dimensional Echocardiography Is Essential for Intraoperative Assessment of Mitral Regurgitation. Circulation 2013.