TEE (midesophaeal 4-chamber view) of normal and abnormal LV systolic function

Midesophageal four-chamber views of a patient with normal LV systolic function (left panel) and a patient with cardiomyopathy and severe global LV systolic dysfunction (right panel). The LV ejection fraction was measured to be 60% in the patient with normal ventricular function (left panel) and 20% in the patient with cardiomyopathy (right panel).