THE ABILITY TO perform and interpret a comprehensive 2-dimensional transesophageal echocardiographic (2D-TEE) examination is a cornerstone to the modern-day practice of cardiac anesthesia and is inherently linked to the subspecialty. As with most technologies, echocardiography has seen numerous advancements evolve over time. The most significant of these advances that have occurred over the course of the past 50 years includes the progression from 1 (spatial)-dimensional imaging (A- and M-mode) to that of 2-dimensional (2D) imaging, as is currently in use today.
