Real-time 3-dimensional transesophageal echocardiography (RT 3D TEE) is a novel imaging technology that is becoming more frequently encountered in the operating room environment. The authors present a case in which the availability of 3D TEE altered the surgical management of a patient presenting for mitral valve repair. Additionally, the advantages of 3D, as opposed to 2D assessment of left ventricular function, are discussed.
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