Ultrasound Board Review on How Identify and Locate Wall Motion Abnormalities. Learn Heart Segments

Echocardiography
Wall Motion Abnormalities

Left ventricular RWMA is described as a hypokinesis, dyskinesis, or akinesis of a segment when compared to the other contracting segments of the chamber. This can be visualized sonographically as a blunting of the typical symmetric myocardial thickening during contraction as compared to other cardiac wall segments. This abnormal movement of the wall segment is highly suspicious for an associated coronary thrombus.

The anterior wall is supplied by the LAD, whereas the lateral wall is supplied by the LAD and the Cx, and the inferior wall is supplied by the RCA. In the A4C view, the proximal and parts of mid intraventricular septum is supplied by the RCA, while the rest of the visualized myocardium is supplied by the LAD. All three major vessels are roughly equally distributed over the left ventricle. However, some variation is to be expected.

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